| "A large mob, calling themselves freemasons" : masonic parades in Ulster | Mirala, Petri | Article in Book | Palgrave Macmillan | 2000 |
| "A nation perishing of political economy"? | Boylan, Thomas A.Foley, Timothy P. (Tadhg) | Article in Book | Irish Academic Press | 1996 |
| "A stable unseen power" : Dr William Drennan and the origins of the United Irishmen | Stewart, Anthony Terence Quincey, 1929-2010 | Article in Book | Blackstaff Press | 1976 |
| "Confinement of the higher orders" : the social role of private lunatic asylums in Ireland, c. 1820-60 | Mauger, Alice | Article in Journal | | 2012 |
| "No petty people" : the Anglo-Irish identity in colonial Australia | Forth, Gordon | Article in Book | Leicester University Press | 1992 |
| "Normal" development in an "abnormal" place : Sir William Wilde and the Irish School of Medicine | McGeachie, James | Article in Book | Cork University Press | 1999 |
| "Nothing on impulse" : life styles of Philadelphia artisans 1820-50 | Laurie, Peter | Article in Journal | | 1974 |
| "Rare, Valuable and Extensive Libraries" | Kennedy, Máire | Article in Journal | | 2001 |
| "The children are used wretchedly" : pupil responses to the Irish charter schools in the early nineteenth century | Coleman, Michael C. | Article in Journal | | 2001 |
| "The ecstasy of perfected love" : The eschatological mysticism of J.N. Darby | Nebeker, Gary L. | Article in Book | Paternoster | 2004 |
| "The Lever Must be Applied in Ireland" : Marx, Engels, and the Irish Question | Rodden, John | Article in Journal | | 2008 |
| "The subaltern can whisper" : secrecy and solidarity in the fiction of John and Michael Banim | Murphy, Willa | Article in Book | Irish Academic Press | 2005 |
| "The very worst class" : Irish women convicts at Moreton Bay | Harrison, Jennifer | Article in Book | Crossing Press | 1993 |
| "Whistle up the marching tune" : the life and times of Thomas W. Sweeny | Morgan, Jack | Monograph or Collective Volume | Nova University | 1994 |
| 'A battle of giants' : Waterloo, Wellington and Ireland | Geoghegan, Patrick | Article in Journal | | 2015 |
| 'A big happy family for one and all'? The Duffys and the challenging world of the circus in Nineteenth and Twentieth century Britain and Ireland | McMinn, Richard | Article in Journal | | 2012 |
| 'A Nation in its last moments': William Godwin's visit to Ireland, 1800 | Clemit, PamelaMcAuley, Jenny | Article in Journal | | 2015 |
| 'A world apart': pleasures of the elite in Derry and Donegal 1770-1820 | McAllister, Nuala | Article in Journal | | 2006 |
| 'As nearly related as possible' : solidarity amongst the Irish Palatines | Hick, Vivien | Article in Book | Four Courts | 1995 |
| 'Buffoonery and easy sentiment' : popular Irish plays in the decade prior to the opening of the Abbey Theatre | Fitz-Simon, Christopher | Monograph or Collective Volume | Carysfort Press | 2011 |
| 'Diversion' aerach: an t-amhráin 'Aonach Bhearna na Gaoithe' agus an saol in Éirinn sa naoú haois déag | Ó Gealbháín, Ciarán | Article in Journal | | 2013 |
| 'From Seagoe to Jerusalem' once more | Fennessy, Ignatius | Article in Journal | | 2001 |
| 'Harboured here below' - The wreck of the Cambria 1870 | Richmond, Paul | Article in Journal | | 2011 |
| 'Infatuated to his ruin' : the fate of Thomas Dermody, 1775-1802 | Griffin, Michael | Article in Journal | | 2006 |
| 'John Egan’s Journey toward creating the “Most Perfect Harp”. | O'Donnell, Mary Louise | Article in Journal | | 2011 |
| 'Members of the republick of letters': Maria Edgeworth, literary sociability and intellectual pursuits in the Irish midlands | Prendergast, Amy | Article in Journal | | 2016 |
| 'Our sacred and civil obligations as Christians and as citizens': religion, charity and governance in early nineteenth-century Dublin and Edinburgh | Curran, Joe | Article in Journal | | 2023 |
| 'Poor Green Erin' : German travel writers' narratives on Ireland from before the 1798 Rising to after the Great Famine | | Monograph or Collective Volume | Peter Lang | 2011 |
| 'Sound of the brogue soon on city trams' : Irish immigrants in post-war Melbourne | O'Hanlon, Séamus | Article in Journal | | 2005 |
| 'The abominable Cath. Quest.': Catholic Emancipation, 1820-30 | Bartlett, Thomas | Article in Book | Oxford University Press | 2023 |
| 'The battle of Rushveala' : origin and outcome of a faction fight at Oughterard, Co. Galway on 8 December 1837 | Mitchell, James | Article in Journal | | 2003 |
| 'The only Irish magazine' : early Blackwoods and the production of Irish 'national character' | Roberts, Daniel S. | Article in Journal | | 2017 |
| 'The opportunity of being useful' : Daniel O'Connell's influence on John Hubert Plunkett | Earls, Tony | Article in Book | | 2008 |
| 'The sober duties of life': the domestic and religious lives of six Quaker women in Ireland and England, 1780-1820 | McLoughlin, Riana | Thesis | | 1993 |
| 'The Vile System of Altar Denunciation'. The case of Fr Anthony Nolan, PP, Monsea Co. Tipperary | Grace, Daniel | Article in Journal | | 2012 |
| 'To die with honour or gain the day':Dan Donnelly as an Irish sporting hero | Garnham, Neal | Article in Journal | | 2011 |
| 'Woe to the oppressor of the poor! : post-rebellion violence in Ballitore, county Kildare | O'Neill, Kevin | Article in Book | | 2003 |
| 1820 : disorder and stability in the United Kingdom | Chase, Malcolm | Monograph or Collective Volume | Manchester UP | 2013 |
| A 'Fair chance'? The Catholic Irish Brigade in the British Service, 1793-1798 | McDonnell, Ciarán | Article in Journal | | 2016 |
| A bibliography of James Clarence Mangan | O'Hegarty, P. S. | Article in Journal | | 1941 |
| A calendar of the letters of Thomas Bray, Archbishop of Cashel, 1792-1820 | Meagher, Mary T. | Thesis | | 1966 |
| A caricature of an Irish naturalist : Revd Dr William Richardson (1740-1820) | Nelson, E. Charles | Article in Journal | | 2000 |
| A contrast in crises : southern Irish Protestantism, 1820-43 | d'Alton, Ian | Article in Book | NA | 1978 |
| A damask tablecloth and the Philadelphia Exhibition | Hill, Elaine | Article in Journal | | 2012 |
| A Failed Bank of Waterford in the Eighteen-Hundreds | Grogan, Patrick | Article in Journal | | 2017 |
| A figure of the past : Frederic Burton's Irish years | Flynn, Pat | Article in Journal | | 1986 |
| A foreign correspondent in the Mambi-Land : James J. O’Kelly's fugitive Cuba, Fernando Ortiz's Irish Mambí | Brittan, Jennifer | Article in Journal | | 2011 |
| A grave at Newmarket | Forde, R. | Article in Journal | | 1975 |
| A History of Araby House and North Richmond Street Dublin 1820- 1998 | Quinn, Michael | Monograph or Collective Volume | The Irish National Organisation of the Unemployed | 20 |
| A justification for foreign intervention in early modern Ireland | O'Connor, Thomas | Article in Book | | 2003 |
| A Lampoon of Queen's College Galway, 1878 | Mac Mathúna, SéamusMohr, Paul | Article in Journal | | 2023 |
| A letter from Robert Hay, 1820 | Sweetman, William | Article in Journal | | 2004 |
| A list of books, pamphlets etc. printed wholly, or partly in Irish, from the earliest period to 1820. edited by Seamus Ó Cásaide | Dix, E. R. McC. (Ernest Reginald McClintock), 1857-1936 | Monograph or Collective Volume | | 1913 |
| A map of the town of Mountrath two hundred years ago | Horner, Arnold | Article in Journal | | 2014 |
| A melancholy truth : the travels and travails of Fr Charles Bourke, 1765-1820 | Hoban, Brendan | Monograph or Collective Volume | Baile House | 2008 |
| A Nabob at Holyhead : Richard Griffith, Post Office packet agent, 1815-1820 | Owen, John Roger | Article in Journal | | 2004 |
| A new lease on life : landlords, tenants, and immigrants in Ireland and Canada | Wilson, Catharine Anne | Monograph or Collective Volume | McGill-Queen's University Press | 1994 |
| A new religion, literary study and elementary educaiton in India and Ireland | Parsons, Cóilín | Article in Book | | 2006 |
| A particular of the howses and famylyes in London Derry, May 15, 1628 | Beresford, TristramKing, R. G. S. | Monograph or Collective Volume | | 1936 |
| A regency artist in Ireland : Maria Spilsburg Taylor (1776-1820) | Yeldham, Charlotte | Article in Journal | | 2005 |
| A regency artist in Ireland : Maria Spilsburg Taylor (1776-1820) | Yeldham, Charlotte | Article in Journal | | 2005 |
| A remote outpost : the story of the Methodist society in Tarbert, county Kerry, 1820-1960 | Ó Concubhair, Pádraig | Monograph or Collective Volume | The author | 2005 |
| A sporting time : New York City and the rise of modern athletics, 1820-1870 | Adelman, Melvin | Monograph or Collective Volume | University of Illinois Press | 1986 |
| A stranger in County Armagh | Binns, Jonathan, 1785-1871Moryson, Fynes, 1566-1630Wesley, John, 1703-1791Young, Arthur, 1741-1820 | Article in Journal | | 1991 |
| A street in San Francisco | Coakley, Teddy | Article in Journal | | 2011 |
| A theoretical exploration of institution-based mental health care in Ireland | Brennan, Damien | Article in Book | | 2012 |
| A tour in Ireland : with general observations on the present state of the kingdom : made in the years 1776, 1777, and 1778, and brought down to the end of 1779 | Young, Arthur, 1741-1820 | Monograph or Collective Volume | | 1780 |
| A tour in Ireland, 1776-9 | Ruane, J. B.Young, Arthur, 1741-1820 | Monograph or Collective Volume | Irish University Press | 1970 |
| A United Irish family : the McCabes of Belfast | McCabe, John | Article in Journal | | 1997 |
| A view from the summit : the Gladstone diaries completed | Jackson, Alvin | Article in Journal | | 1996 |
| A vocabulary of ethnic perception : content analysis of the American stage Irishman, 1820-1860 | Knobel, Dale T. | Article in Journal | | 1981 |
| A wider view from a local housing estate | Lennon, Brian | Article in Journal | | 1984 |
| Abraham Lincoln and the American Irish | Kenny, Kevin | Article in Journal | | 2013 |
| Agnes Jones | McCall, Felicity | Monograph or Collective Volume | Guildhall Press | 2006 |
| Allman's Bandon Distillery - Co. Cork 1826-1925 | | Article in Journal | | 2017 |
| America and Ireland, 1776-1976 : the American identity and the Irish connection | | Monograph or Collective Volume | Greenwood Press | 1980 |
| Amerika nanbu no unga keiei to imin rodosha : 19 seiki zenban Chesapiku ando Ohaio unga no baai | Hama, Fumiaki | Article in Journal | | 1989 |
| Among Cromwell's children : the Irish and Yankee New England | Morgan, Jack | Article in Journal | | 2009 |
| An account of nearly four hundred Irish writers | O'Reilly, Edward | Monograph or Collective Volume | | 1820 |
| An agriculturalist's account of Clare, September 1776 | Young, Arthur | Article in Book | | 1998 |
| An Cantaire Siúlach : Tadhg Gaelach | Nic Éinrí, Úna | Monograph or Collective Volume | An Sagart | 2001 |
| An early map of Co. Cavan | Barron, T. J. | Article in Journal | | 1985 |
| An end to terrorism | Jennings, Peter | Monograph or Collective Volume | Lion | 1984 |
| An historic sketch ... of the contagious fever epidemic in Ireland during the years 1817, 1818, and 1819 | Harty, William | Monograph or Collective Volume | NA | 1820 |
| An Irish family between assimilation and revolution : the Keatings of Poitiers, 1777-1795 | Jahan, Sébastien | Article in Book | | 2003 |
| An Irish merchant in late seventeenth-century Málaga | McCrohan, Jimmy | Article in Book | | 2010 |
| An Irish printer took first press west of the Missisippi River | [Wilder, James C.] | Monograph or Collective Volume | The Wild Apple Press | 2011 |
| An Irish regiment in Brazil, 1820-1828 | Von Allendorfer, Frederic | Article in Journal | | 1957 |
| An Irish Teniers? The development of paintings of everyday life in Ireland, c.1780-c.1810 | Boland, Mary Jane | Article in Book | | 2016 |
| An Post's reward notice collection | Ferguson, Stephen | Article in Book | National Print Museum | 2008 |
| An tAthair Brasbie | De Brún, Pádraig | Article in Journal | | 1969 |
| An tAthair Pól Ó Briain | Ó Muirithe, Diarmaid | Article in Book | | 1993 |
| Armagh's forgotten pioneer Rev. Dr. Moses Harvey, LL.D., F.R.G.S., F.R.S.C. | Batchelor, John | Article in Journal | | 2013 |
| Armagh's forgotten pioneer, Rev. Dr Moses Harvey, LL.D, F.R.G.S., F.R.S.C. | Batchelor, John | Article in Journal | | 2013 |
| Art Murphy and Gaelic literary activity in the Dundalk area in the 1820s | Duffy, Seán | Article in Journal | | 1987 |
| Arthur Young and Mount Kennedy | Medlycott, John | Article in Journal | | 1998 |
| Arthur Young's published and unpublished illustrations for 'A Tour in Ireland 1776-1779' | O'Kane, Finola | Article in Journal | | 2016 |
| Artistic connections between Dublin and London in the early Georgian period : James Latham and Joseph Highmore | Riding, Jacqueline | Article in Book | | 2016 |
| Ashbourne: Landscape, Lives and Lore | | Monograph or Collective Volume | Ashbourne Historical Society | 2020 |
| Aspects of romantic Ireland : Charles Robert Maturin's Manuel (1817) and Melmoth the Wanderer (1820) | de Salazar, Asier Altuna-García | Article in Book | | 2013 |
| Aspects of the literary activity of the Irish Franciscans in Prague, 1620-1786 | Mac Craith, MícheálWorthington, David | Article in Book | | 2003 |
| Ballyfin : the restoration of an Irish house and demesne | Mulligan, Kevin V. | Monograph or Collective Volume | Church House Press | 2011 |
| Banking in Ulster 1808-1820 | Ollerenshaw, Philip, 1953- | Article in Journal | | 1984 |
| Bannow school (1821-1826) | Doyle, P. A., OSA | Article in Journal | | 1920 |
| Bantry's French connection. A stay of execution in the sale of Bantry's French tapestries allows Nigel everett to investigate their sources at Aubusson and Gobelin | Everett, Nigel | Article in Journal | | 2015 |
| Beaurivage : the development of an Irish ethnic identity in rural Quebec, 1820-1860 | McQuillan D. Aidan | Article in Book | | 1988 |
| Belfast before 1820 : a bibliography of printed material | Stevenson, Noragh | Monograph or Collective Volume | | 1967 |
| Birth, marriage and death notices of Kerry's estated Gentlemen, principally from the revolutionary and Napoleonic eras | O'Carroll, Gerald | Article in Journal | | 2005 |
| Bishop John England of Charleston : catholic spokesman and southern intellectual, 1820-1842 | Saunders, R. | Article in Journal | | 1993 |
| Bishop Mant's years in Killaloe, 1820-1823 | Kierse, Sean | Article in Journal | | 1982 |
| Bishop Patrick McGettigan of Raphoe, 1820-1861 | Canning, B. J. (Bernard J.) | Article in Journal | | 2011 |
| Blacksmiths in Kilkenny | McEvoy, Dan | Article in Journal | | 1994 |
| Boats of the Dingle fishery | Graham, Dan | Article in Book | | 2008 |
| Bob of the Reeks cave | Walsh, Brendan M. | Article in Journal | | 2004 |
| Boston's Donegal diaspora | McColgan, John | Article in Journal | | 2019 |
| Botanists of the North of Ireland | Lett, H.W., Canon | Article in Journal | | 1913 |
| Bounty emigrants to Australia | Huntsman, L. | Article in Journal | | 2002 |
| Brillat-Savarin and the destiny of nations | Fink, Beatrice | Article in Book | | 1995 |
| Bristol's trade with Ireland and the continent, 1503-1601 : the evidence of the exchequer customs accounts | | Monograph or Collective Volume | Four Courts Pres for the Bristol Record Society | 2009 |
| Britain and Ireland in the 1840s | | Monograph or Collective Volume | Open University Press | 1976 |
| British intelligence in Ireland, 1920-21 : the final reports | | Monograph or Collective Volume | Cork University Press | 2002 |
| British military, part II : John Crowe, soldier, labourer, overseer, hotel keeper and farmer | Barker, G. J.Wood, J. R. T. | Article in Book | | 1992 |
| Britishness as an imperial and diasporic identity : Irish elite perspectives, c.1820-1870's | Ridden, Jennifer | Article in Book | | 2004 |
| Broadside literature and popular political opinion in Munster, 1800-1820 | Cronin, Maura (née Murphy) | Article in Book | | 2013 |
| Buachaillí na carraige, 1820-'25 | Ó Muireadhaigh, Sailbheastar | Article in Journal | | 1962 |
| Bull Run Russell | Spears, Royston | Article in Journal | | 2020 |
| Buried history | Tynan, P.J. | Article in Journal | | 2016 |
| Burke's Irish views and writings | Cullen, L. M. (Louis Michael) | Article in Book | | 1997 |
| C.B.S. Doneraile : the first fifty years | Lysaght, Jim | Article in Journal | | 1992 |
| Calendar of Bray papers | Meagher, Claude | Article in Journal | | 1970 |
| Calendar of the papers of Dr Bray, archbishop of Cashel and Emly (1792-1820) | Meagher, Claude | Article in Journal | | 1968 |
| Canonicity and radical evangelicalism: the case of Thomas Kelly | Sweetnam, Mark | Article in Book | | 2012 |
| Captain Rock : the Irish agrarian rebellion of 1821-1824 | Donnelly, James S., Jr. | Monograph or Collective Volume | University of Wisconsin Press | 2009 |
| Captain Rock : the Irish agrarian rebellion of 1821-1824 | Donnelly, James S., Jr.. | Monograph or Collective Volume | Collins Press | 2009 |
| Carleton in Louth | Casey, Daniel J. | Article in Journal | | 1969 |
| Carleton's Clogher | Johnston, Jack | Article in Book | | 2006 |
| Carlow and Darwin: Ireland and the age of the earth debate [Part 1] | De Arce, M[iguel]McMillan, N[orman].D.Nevin, M[artin] | Article in Journal | | 2011 |
| Carlow county surveyors [1834-1942] | O'Donoghue, Brendan | Article in Journal | | 2009 |
| Cás Antaine Uí Dhálaigh | Ó Baoill, Pádraig | Article in Book | | 2008 |
| Castlereagh, Captain Hamilton and General Cockburn : an ancient Greek (?) tombstone in County Down | Whitehead, David | Article in Journal | | 1995 |
| Catherine McAuley and the education of Irish Roman Catholic children in the mid-nineteenth century | Minns, Hilary | Article in Book | | 2000 |
| Catholic books printed in Ireland, 1740-1820, containing lists of subscribers | Ó Súilleabháin, Pádraig | Article in Journal | | 1964 |
| Catholic emancipation | Nowlan, Kevin B. | Article in Book | NA | 1986 |
| Catholic emancipation : Daniel O'Connell and the birth of Irish democracy 1820-30 | O'Ferrall, Fergus | Monograph or Collective Volume | Gill & Macmillan | 1985 |
| Catholic Emancipation and the election of Daniel O'Connell in 1828 | Sheedy, Kieran | Article in Book | | 2008 |
| Catholics in the United Kingdom, 1800-1820 | Mullett, Michael | Article in Book | Oxford University Press | 2023 |
| Celbridge Abbey | MacNeill, Anne | Article in Journal | | 2008 |
| Celts, Cathaginians and constitutions : Anglo-Irish literary relations, 1780-1820 | Vance, Norman | Article in Journal | | 1981 |
| Change and continuity in an Irish country town : Kells, 1600-1820 | Simms, Anngret | Article in Book | | 2002 |
| Changes of address : Tyndall, Darwin & the Ulster Presbyterians | Foster, John Wilson | Article in Book | | 2002 |
| Charitable loan fund societies in Ireland, c. 1820-1914 | McLaughlin, Eoin | Article in Book | | 2015 |
| Charles Wye Williams and Irish steam shipping 1820-1850 | Harcourt, Freda | Article in Journal | | 1992 |
| Charleston's bishop John England and American slavery | Kelly, Joseph | Article in Journal | | 2001 |
| Charlotte Brooke's Reliques of Irish poetry: Eighteenth-century 'Irish Song' and the politics of remediation | Davis, Leith | Article in Book | | 2012 |
| Cheating the fell destroyer | Rooney, Brendan | Article in Journal | | 2011 |
| Child Welfare and Education in the Industrialising Town | Smyth, Lauren | Article in Book | | 2022 |
| Chinese armorial porcelain for Ireland | Howard, David Sanctuary | Article in Journal | | 1986 |
| Cinnlae Amhlaoibh Uí Shúileabháin : reassessments | | Monograph or Collective Volume | Irish Texts Society | 2004 |
| Cíos, cás agus cathú: teagasc an Athar de Bhál 4 | Ó Macháin, Pádraig | Article in Journal | | 2010 |
| Civil aviation in Ulster - a brief survey | Warner, Guy | Article in Journal | | 2001 |
| Civility, patriotism and performance : Cato and the Irish history play | O'Shaughnessy, David | Article in Book | | 2019 |
| Collected writings | Lalor, James Fintan | Monograph or Collective Volume | Woodstock | 1997 |
| Colonial origins of the Australian home | Davison, Graeme | Article in Book | | 2000 |
| Comhdháil Dhún Geanainn agus Parlaimint Ghrattan | National Library of Ireland | Monograph or Collective Volume | National Library of Ireland | 1982 |
| Commerce, conquest and change: Thomas Hickey's 'John Mowbray, Calcutta Merchant, attended by a Banian and a messenger' | McDermott, Siobhan | Article in Book | | 2016 |
| Conciliation, anti-Orange politics and the sectarian scare: Dublin politics in the early 1820s | Katsuta, Shunsuke | Article in Journal | | 2011 |
| Constructing the image of Daniel O'Connell | Owens, Gary | Article in Journal | | 1999 |
| Controversy and schism in the Synod of Ulster in the 1820's | Holmes, Finlay | Article in Book | | 1981 |
| Convergent opposites : the correspondence of the Irishmen George Gabriel Stokes and John Tyndall | McMillar, N. D. | Article in Journal | | 2000 |
| Conversion, family and mentality | Fleming, David A. | Article in Book | | 2005 |
| County Meath during the Famine | Connell, Peter | Article in Book | | 2012 |
| Courts and cabinets of George III | Anonymous | Monograph or Collective Volume | [s.n.] | 1848 |
| Creating employment | Marks, Bernadette | Article in Journal | | 2017 |
| Creating order? Painting the crowd in nineteenth-century Ireland | Boland, Mary Jane | Article in Book | | 2016 |
| Creator of Glanleam ... Sir Peter Fitzgerald and his Kerry garden | O'Brien, Seamus | Article in Journal | | 1999 |
| Creators of mathematics : the Irish connection | | Monograph or Collective Volume | University College Dublin Press | 2000 |
| Criminal justice during the long eighteenth century : theatre, representation and emotion | | Monograph or Collective Volume | Routledge; Taylor & Francis | 2019 |
| Cult of a Dark Hero: Nicholson of Delhi | Flinders, Stuart | Monograph or Collective Volume | I.B.Tauris | 2018 |
| Cultures of radicalism in Britain and Ireland | | Monograph or Collective Volume | Pickering & Chatto | 2013 |
| Dalkey's First National School | O'Riordan, Dermot | Article in Journal | | 2022 |
| Dan Donnelly, 1788-1820 : pugilist, publican, playboy | Myler, Patrick | Monograph or Collective Volume | Lilliput | 2010 |
| Daniel Maclise and Victorian art | Turpin, John | Article in Journal | | 1975 |
| Daniel O'Connell and the Bible War | Monaghan, Evie | Article in Book | | 2013 |
| Daniel O'Connell and the debate on anti-slavery, 1820-50 | Bric, Maurice J. | Article in Book | | 2005 |
| Daniel O'Connell in later Gaelic manuscripts | Buttimer, Neil | Article in Book | | 2025 |
| Daniel O'Connor's account of the 1st Light Infantry Regiment of the Irish Legion intended for Venezuela, 1819-1820 | Chartrand, René | Article in Journal | | 2009 |
| Darwin at church : John Tyndall's Belfast address | Brown, Matthew | Article in Book | | 2005 |
| Daughters of Ireland : the rebellious Kingsborough sisters and the making of a modern nation | Todd, Janet M., 1942- | Monograph or Collective Volume | Ballantine | 2003 |
| David Colbert Broderick | O'Connor, R. C. | Article in Journal | | 1914 |
| Deachaithe | Mac Giolla Choille, Breandán | Article in Journal | | 1954 |
| Deane and Scott: written in stone, but by whom? | Byrne, John G.Kelly, Mary | Article in Journal | | 2012 |
| Death notices and obituaries in provincial Irish newspapers, 1820-1900 | Breathnach, CiaraButler, David | Article in Book | | 2013 |
| Debating empire and slavery : Ireland and British India, 1820-1845 | Bric, Maurice J. | Article in Journal | | 2016 |
| Declaring loyalty to the Union: the women of Ulster's country houses and the organization of Ulster Day | Cherry, JonathanCrampsie, Arlene | Article in Book | | 2018 |
| Decomposition and reconstitution : a theoretical and historical study of Philadelphia artisans, 1785-1820 | Northrup, Ric | Monograph or Collective Volume | University of North Carolina | 1989 |
| Defining a British state : treason and national identity, 1608-1820 | Steffen, Lisa | Monograph or Collective Volume | Palgrave | 2001 |
| Déiseach ag deireadh an domhain: Daniel Power (c.1790-1830 | Ó Broin, Gréagóir | Article in Journal | | 2015 |
| Déiseach ag deireadh an domhain: Daniel Power (c.1790-1830 | Ó Broin, Gréagóir | Article in Journal | | 2013 |
| Diary of a Land League activist : life of Henry F. O'Mahony, US Civil War veteran and Irish Land League activist | Quirke, Henry F. | Article in Journal | | 2008 |
| Diet in pre-Famine Ireland | Sexton, Regina | Article in Book | | 2012 |
| Dion Boucicault | Hogan, R. | Monograph or Collective Volume | [s.n.] | 1969 |
| Dion Boucicault : a biography | Fawkes, Richard | Monograph or Collective Volume | Quartet Books | 2011 |
| Dion Boucicault : Irish identity on stage | McFeely, Deirdre | Monograph or Collective Volume | Cambridge University Press | 2012 |
| Dion Boucicault and the globalised Irish stage | Richards, Shaun | Article in Book | | 2020 |
| Dion Boucicault's 'The wearing of the green' | McFeely, Deirdre | Article in Book | | 2005 |
| Discipline, sentiment and the Irish-American public : Mary-Ann Sadlier's popular fiction | Howes, Marjorie | Article in Journal | | 2005 |
| Displaying Ireland : Sydney Owenson and the politics of spectacular antiquarianism | Tessone, Natasha | Article in Journal | | 2002 |
| Distinguishing between Griffith's valuation and the 'poor law valuation' - more than just semantics? | Smyth, William A. | Article in Journal | | 2004 |
| Distribution of Waldrons in mid-nineteenth-century Ireland | Waldron, Paul | Article in Journal | | 1996 |
| Divergent paths : family histories of Irish emigrants in Britain, 1820-1920 | Herson, John | Monograph or Collective Volume | Manchester UP | 2015 |
| Domestic decorative painting in Ireland, 1720 to 1820 | Popplewell, S. P. | Article in Journal | | 1979 |
| Dominican education in Ireland 1820-1930 | Kealy, Máire M. | Thesis | | |
| Dominican education in Ireland, 1820-1930 | Kealy, Máire M. | Monograph or Collective Volume | Irish Academic Press | 2007 |
| Donegal and the Victoria Cross | Doherty, Richard | Article in Journal | | 2020 |
| Dr Moses Harvey (1820-1904) | Boyle, Michael | Article in Journal | | 2008 |
| Dr. Patrick Browne and Dr. Joseph Banks : a letter about a 'lost' Irish flora | Nelson, E.C. | Article in Journal | | 2006 |
| Drawing Dublin | Milligan, Kathryn | Article in Journal | | 2018 |
| Drumbanagher House and Garden | Reid, Myles | Article in Journal | | 2009 |
| Dublin artisan activity, opinion and organisation, 1820-50 | D'Arcy, Fergus | Thesis | | 1968 |
| Dublin theatres and theatre customs, 1637-1820 | Stockwell, la Tourette | Monograph or Collective Volume | Kingsport Press | 1938 |
| Dublin theatres and theatre customs, 1637-1820 | Stockwell, la Tourette | Monograph or Collective Volume | [s.n.] | 1968 |
| Early America in progress | Richter, Daniel K. | Article in Journal | | 2003 |
| Early calls for an Irish national literature, 1820–77 | Leerssen, J. Th. (Joep)Loeber, RolfStouthamer-Loeber, Magda | Article in Book | | 2003 |
| Early iron ships on the River Shannon | Bowcock, Andrew | Article in Journal | | 2006 |
| Early Pittsburgh, Pennsylvania | O'Brien, Michael J. | Article in Journal | | 1914 |
| Eccentric Ireland. Co. Kildare | Sharkey, Olive | Article in Journal | | 2010 |
| Edenderry, 1820-1920 : popular politics and Downshire rule | Reilly, Ciarán J. | Monograph or Collective Volume | Nonsuch Publishing | 2007 |
| Educating Irish immigrants in antebellum Lowell | Mitchell, Brian | Article in Journal | | 1983 |
| Educational provision in County Tyrone, 1820-41 | Loughrey, Stephen Victor Patrick | Thesis | | 1984 |
| Embroidery in the expanded field : textile narratives in Irish art post-1968 | Nickell, Karen | Thesis | | |
| Emmet and Shelley : high priests of romantic nationalism | O'Brien, Paul | Article in Book | | 2013 |
| Enclosing the commons : Dalkey, the Sugar Loaves and Bray, 1820-1870 | Clare, Liam | Monograph or Collective Volume | Four Courts | 2004 |
| Engels and the history of Ireland | Maley, Willy | Article in Book | | 2013 |
| England's disgrace? J.S. Mill and the Irish question | Kinzer, Bruce L., 1948- | Monograph or Collective Volume | University of Toronto Press | 2001 |
| English, Irish and Irish-American pioneer settlers in nineteenth-century Brazil | Marshall, Oliver | Monograph or Collective Volume | University of Oxford. Centre for Brazilian Studies | 2005 |
| English, Scottish and Irish table glass from the 16th century to 1820 | Hughes, G. B. | Monograph or Collective Volume | Batsford | 1956 |
| Eugene O'Curry and the Irish tradition | Tierney, Michael | Article in Journal | | 1962 |
| Evangelical cross-currents in the Church of Ireland, 1820-1833 | Stunt, Timothy C. F. | Article in Book | | 1989 |
| Extracts from certain rolls forming part of Pope Nicholas's taxation, AD 1291, found among the records in the exchequer at Westminster ... containing the dioceses of Limerick, Emly, Cashell, Cork, and Waterford | Anonymous | Article in Book | | 1819 |
| Fabricating history, or John Banim refights the Boyne | Friedman, Bernard | Article in Journal | | 1982 |
| Featured Review: 'On every tide: the making and remaking of the Irish world', by Seán Connolly | Daly, Mary E. | Article in Journal | | 2023 |
| Featured reviews. 'The First Irish Cities. An eighteenth-century transformation', by David Dickson, London/New Haven, 2021 | Sweet, Rosemary | Article in Journal | | 2022 |
| Female agency in the Risorgimento : Lady Morgan's role and impact | Badin, Donatella Abbate | Article in Book | | 2014 |
| Fenianism as a global phenomenon : Thomas O'Malley Baines, papal soldier and Fenian convict | Maume, Patrick | Article in Book | | 2006 |
| Filling the gaps : policy and pressure under direct rule | Morrow, Duncan | Article in Book | | 1996 |
| Five women of Monksgrange | Bull, Philip | Article in Book | | 2018 |
| Flanagan's History of Westport. Appendix 1. Voters List Prepared for Election to Grattan's Parliament in 1783 from the Estate of the Earl of Altamont | Ó Flanagáin, Peadar | Article in Journal | | 2017 |
| Florence Nightingale and her Irish connections | Lysaght, Moira | Article in Journal | | 1977 |
| Florence Nightingale and the nuns | Stockley, W. F. P. | Article in Journal | | 1940 |
| Folksongs and ethnography of singing in Patrick Kennedy’s The Banks of the Boro | Cohane, Mary EllenGoldstein, Kenneth S | Article in Journal | | 1996 |
| Food and famine : diet in County Londonderry 1820-1860 | Crawford, Margaret | Article in Book | | 1999 |
| Forging Irish cultural identity : the scholar-poets of Meath and their influence | Mac Gabhann, Séamus | Article in Book | | 2015 |
| Fr Francis Smyth of 19th century Dalkey | Clarke, Liam | Article in Journal | | 2006 |
| Fr. Paul O'Brien of Cormeen (1763-1820), folk-poet and Maynooth professor | Mac Gabhann, Séamus | Article in Journal | | 1999 |
| Francis McDonnell, a son of Erin, captured the English flag at Stony Point | O'Brien, Michael J. | Article in Journal | | 1922 |
| Frederick Prussia Plowman : A Dublin painter of the late-18th century | Wynne, Michael | Article in Journal | | 2000 |
| From broken glass to stained paper : a family and a business in nineteenth-century Ireland | Star, Paul | Article in Journal | | 2025 |
| From Channel Row to Cabra : Dominican nuns and their times, 1717-1820 | Kealy, Máire M. | Monograph or Collective Volume | Columba Press | 2010 |
| From comfortable farms to mercantile commerce and cultural politics : the social origins and family connections of Thomas Francis Meagher | Mannion, John | Article in Journal | | 2003 |
| From Cork to Kempsey. An Irish contribution to the timing of Australian Federation | Harty, Raymond | Article in Journal | | 2004 |
| From Doneraile to Kilmallock. From 'Walks through Ireland' | Trotter, John Bernard | Article in Journal | | 2006 |
| From Ireland to Brooklyn : O'Neill, Scott, Stack, Kiernan, McManus, McPadden and allied families | Silinonte, Joseph M. | Article in Journal | | 2003 |
| From Ireland to Peru : Arthur Murphy’s (anti)-imperial dramaturgy | Orr, Bridget | Article in Book | | 2019 |
| From Jacobite to Jacobin | Ó Buachalla, Breandán | Article in Book | | 2003 |
| From Kent Co (Ontario) marriage records, 1857-1869 (also burials c.1820-1924; marriage records of Essex County, 1858-1864 (Ontario, Canada) | Reaume, Helen | Article in Journal | | 1994 |
| From Seagoe to Jerusalem with a singular Franciscan | Fennessy, Ignatius | Article in Journal | | 1999 |
| From Swift to Grattan | McCracken, J. L. | Article in Book | | 1973 |
| From the memoirs of Richard Rorke | Rorke, Richard | Article in Journal | | 1981 |
| From working girl to working mother : the female labor force in the United States, 1820-1980 | Weiner, Lynn | Monograph or Collective Volume | University of North Carolina Press | 1985 |
| Funding the nation : money and nationalist politics in nineteenth-century Ireland | Keyes, Michael | Monograph or Collective Volume | Gill & Macmillan | 2011 |
| Fünf frauen an Engels Seite = Five women at Engels’ side | Gemkow, Heinrich | Article in Journal | | 1995 |
| Furniture of the Georgia Piedmont before 1820 | Green, Henry | Article in Journal | | 1982 |
| Further notes on the genealogy and social history of the Carlow family of John Tyndall (1820-1893) | De Arce, MiguelElwick, JamesMcGing, DeirdreMcMillan, Norman.D.Nevin, MartinO'Riordan, Emma | Article in Journal | | 2013 |
| Galway : a medico-social history | Murray, James P. | Monograph or Collective Volume | Kenny's Bookshop and Art Galleries Ltd. | 2000 |
| Galway profiles:1, Joseph Patrick Haverty; 2. Denis Daly of Dunsandle (1747-91); 3. Richard Kirwan; 4-5. William Keogh and Edmund O'Flaherty; 6. Robert O'Hara Burke | Maguire, S. J. | Article in Journal | | 1951 |
| Gathering to his name : the story of the Open Brethren in Britain and Ireland | Grass, Tim | Monograph or Collective Volume | Paternoster | 2006 |
| Gender, nation and Ireland in the early novels of Maria Edgeworth and Lady Morgan | Connolly, Claire | Thesis | | 1995 |
| Gendering the "union of hearts" : Irish politics between the public and private spheres | Myers, Mitzi | Article in Journal | | 2001 |
| George III, Queen Sadhbh and the historians | Morley, Vincent | Article in Journal | | 2002 |
| George John Vandeleur Lee, 1820-1886, mentor to George Bernard Shaw | Lee, Enda | Article in Journal | | 2001 |
| God-provoking democrat : the remarkable life of Archibald Hamilton Rowan | Whelan, Fergus | Monograph or Collective Volume | New Island | 2015 |
| Golf and the railway connection : a selective history of the impact of the railways on golf in England, Wales and Ireland | Nalder, Ian | Monograph or Collective Volume | Scottish Cultural | 2003 |
| Gothic romance in the magazines | Mayo, Robert D. | Article in Journal | | 1950 |
| Grattan and 1782 : a survey | Smith, Peter | Article in Journal | | 1983 |
| Grattan's failure : parliamentary opposition and the people in Ireland, 1777-1800 | Mansergh, Danny | Monograph or Collective Volume | Irish Academic Press | 2005 |
| Grattan's failure : parliamentary opposition and the people in Ireland, 1779-1800 | Mansergh, Danny | Thesis | | |
| Grattan's Home Rule, Gladstone's, and Asquith's | O'Brien, William | Monograph or Collective Volume | Free Press | 1915 |
| Grattan's Ireland | McDowell, R. B. (Robert Brendan), 1913-2011 | Article in Book | | 1986 |
| Grattan's parliament | Lee, J.J. (John Joseph), 1942- | Article in Book | | 1973 |
| Grattan, a life | McDowell, R. B. (Robert Brendan), 1913-2011 | Monograph or Collective Volume | Lilliput | 2001 |
| Great gaps in Irish song : James Clarence Mangan and the ideology of the nationalist ballad | Lloyd, David | Article in Journal | | 1984 |
| Great Irish households. Inventories from the long eighteenth century | NA | Monograph or Collective Volume | John Adamson | 2022 |
| Great Irish lives | | Monograph or Collective Volume | Times Books / Harper Collins | 2009 |
| Green threads of kinship : aspects of Irish chain-migration to New South Wales, 1820-86 | Reid, Richard | Article in Journal | | 1987 |
| Guard-ships at Kingstown | Lowth, Cormac F. | Article in Journal | | 2014 |
| Hard times in Carnew 1820-1856 | KInsella, Joan | Article in Journal | | 2006 |
| Harriet Martineau's writings on the British Empire | Logan, DeborahMartineau, Harriet, 1802-1876 | Monograph or Collective Volume | Pickering & Chatto | 2004 |
| Henderson's tape factory in Sherrygroom | Robinson, Anna | Article in Journal | | 2003 |
| Henry and Alice James : two views of the Irish question | Mack, Tom | Article in Book | | 2013 |
| Henry Grattan | Kelly, James, 1959- | Monograph or Collective Volume | Dundalgan | 1993 |
| Henry Grattan | McHugh, Roger Joseph | Monograph or Collective Volume | Sheed & Ward | 1936 |
| Henry Grattan : enlightenment in Ireland | Power, John Stocks | Article in Journal | | 1977 |
| Henry Grattan, the Regency Crisis and the emergence of a Whig party in Ireland, 1788-9 | Herman, Neil | Article in Journal | | 2001 |
| Henry Montgomery's letter to Daniel O'Connell | Clifford, BrendanMontgomery, Henry | Monograph or Collective Volume | Brendan Clifford | 1992 |
| Historical perspectives on climate change | Fleming, James Rodger | Monograph or Collective Volume | Oxford University Press | 1998 |
| Histories of the Irish future | Fanning, Bryan | Monograph or Collective Volume | Bloomsbury | 2015 |
| History of 29 Fitzwilliam Street | Burns, Kieran | Article in Journal | | 2004 |
| History of the town and the county of the town of Galway, from the earliest period to the present time | Hardiman, James | Monograph or Collective Volume | | 1820 |
| History painting, painting history : the depiction of conflict in Irish art | Kenny, Ruth | Article in Book | | 2016 |
| Hodder Michael Westropp | Mitchell, Frank | Article in Journal | | 1987 |
| Homage to Grattan (1746-1820) | Brook-Tyrrell, Alma | Article in Journal | | 1983 |
| Homage to Grattan (1746-1820) | Brooke-Tyrrell, Alma | Article in Journal | | 1983 |
| Homology, analogy and the perception of Irish radicalism | Morley, Vincent | Article in Book | | 2012 |
| How 4.5 million Irish immigrants became 40 million Irish Americans : demographic and subjective aspects of the ethnic composition of white Americans | Goldstein, Joshua R.Hout, Michael | Article in Journal | | 1994 |
| Human Capital and Empire: Scotland, Ireland, Wales and British Imperialism in Asia, c.1690-c.1820 | MacKillop, Andrew | Monograph or Collective Volume | Manchester University Press | 2021 |
| Illicit distilling and townland fining legislation in Donegal, 1810-1820 | Rehill, Ramona | Thesis | | 2008 |
| Immigration and the real wage : time series evidence from the United States, 1820-1977 | Geary, Patrick T.,Ó Gráda, Cormac | Monograph or Collective Volume | Centre for Economic Policy Research | 1985 |
| Improving Ireland : Richard Whately, theology, and political economy | Vance, Norman | Article in Book | | 2000 |
| Improving town, 1750-1820 | Connolly, Sean J. | Article in Book | | 2012 |
| In search of peaks, passes and glaciers : Irish Alpine pioneers | Nugent, Frank | Monograph or Collective Volume | Collins | 2013 |
| In the lion's den : Daniel Macdonald, Ireland and Empire | O'Sullivan, Niamh | Monograph or Collective Volume | Ireland's Great Hunger Museum, Quinnipiac University | 2016 |
| Industrial labour and the labour movement, 1820-1914 | Patterson, Henry | Article in Book | | 1985 |
| Industry, 1820-1914 | Ollerenshaw, Philip, 1953- | Article in Book | | 1985 |
| Influences in the early development of J.N. Darby | Stunt, Timothy C. F. | Article in Book | | 2004 |
| Insel der Martyrer oder ein Volk von Rebellen? Deutschlands Katholiken und die irische Nationalbewegung in der Ara Daniel O'Connells (ca. 1820-1847) | Schneider, Bernhard | Article in Journal | | 2008 |
| Insurrection | Curtin, Gerard | Article in Journal | | 1998 |
| Interesting data from our troubled past | Leahy, David | Article in Journal | | 2013 |
| Intermezzo : Edith Oldham and George Grove | Pine, Richard | Article in Book | | 1998 |
| Into the lion's den | Talbot, S. E. | Monograph or Collective Volume | Stephen E. Talbot | 2012 |
| Into the west : landscape and imperial imagination in Connemara, 1820-1870 | Williams, William Henry Allen | Article in Journal | | 1998 |
| Introduction : staging an Irish enlightenment | O’Shaughnessy, David | Article in Book | | 2019 |
| Introduction. Enlightenment and revolution : a British problematic | Brown, Michael | Article in Book | | 2013 |
| Ireland 1922: Independence, Partition, Civil War ; Fifty essays. Fifty contributors. One extraordinary year. | NA | Monograph or Collective Volume | Royal Irish Academy | 2022 |
| Ireland and Scotland in the age of revolution : planting the green bough | McFarland, Elaine W. | Monograph or Collective Volume | Edinburgh University Press | 1994 |
| Ireland and the Royal Navy in the eighteenth century | Walsh, Patrick, 1980- | Article in Book | | 2016 |
| Ireland's penitentiary, 1820-31 : an experiment that failed | Heaney, Henry | Article in Journal | | 1974 |
| Ireland, 1760-1855 | Simes, Douglas | Article in Book | | 2002 |
| Ireland, colonial science and the geographical construction of British rule in India, c.1820-1870 | Crosbie, Barry | Article in Journal | | 2009 |
| Ireland, Enlightenment and the English stage, 1740-1820 | | Monograph or Collective Volume | Cambridge University Press | 2019 |
| Ireland, Irishmen and Revolutionary America, 1760-1820 | Doyle, David Noel | Monograph or Collective Volume | Mercier Press | 1981 |
| Ireland, Irishmen and revolutionary America, 1760-1820 | Doyle, David Noel | Monograph or Collective Volume | Mercier Press | 1981 |
| Irish agriculture output before and after the Famine | Ó Gráda, Cormac | Article in Journal | | 1984 |
| Irish America at the crossroads : a new beginning or the last gasp of Irish immigration in the twenty-first century? | Sarbaugh, Timothy J. | Article in Journal | | 1991 |
| Irish and Scottish poetry in the Romantic era | Dornan, Stephen | Thesis | | |
| Irish Artisans and Radical Politics, 1776-1820 Apprenticeship to Revolution | Murtagh, Timothy | Monograph or Collective Volume | Liverpool University Press | 2022 |
| Irish barracks in the 1820s and 1830s : a political perspective | Crossman, Virginia | Article in Journal | | 1989 |
| Irish Catholic genesis of Lowell | O'Dwyer, George F. | Monograph or Collective Volume | Lowell Museum Corporation | 1981 |
| Irish Catholicism in Sunderland in the nineteenth century | Fetherston, Vivienne | Article in Journal | | 2002 |
| Irish Catholicism in the diaspora : the case of the United States | Doyle, David Noel | Article in Book | | 2002 |
| Irish clerics and French politics of grace | O'Connor, Priscilla | Article in Book | | 2003 |
| Irish culture and Scottish enlightenment : Maria Edgeworth's histories of the future | Butler, Marilyn | Article in Book | | 2000 |
| Irish elites in North America and liberal democracy, 1820-1920 | Doyle, David Noel | Article in Journal | | 2002 |
| Irish evangelicals and the British evangelical community, 1820's-1870's | Holmes, Janice | Article in Book | | 2005 |
| Irish faces on the Plains of Abraham: West's painting; the letters home of Lieutenant Henry Browne; and the ancestry of Major-General James Wolfe | Ferguson, Kenneth | Article in Journal | | 2015 |
| Irish fine art in the early modern period; new perspectives on artistic practice, 1620-1820 | | Monograph or Collective Volume | Irish Academic Press | 2016 |
| Irish immigration and settlement in Memphis, Tennessee : 1820's-1860's | Uselton, Darrell B. | Article in Journal | | 1996 |
| Irish immigration to the United States since 1790 | Condon, Edward O'Meagher | Article in Journal | | 1904 |
| Irish Jacobite involvement in the American war of independence | Clarke de Dromantin, Patrick | Article in Book | | 2003 |
| Irish Jesuit education and imperial ideals | McMahon, Timothy G. | Article in Book | | 2012 |
| Irish Jewish records as a genealogical source | Siev, Raphael | Article in Book | | 1992 |
| Irish lace | O'Cléirigh, Nellie | Article in Book | | 2009 |
| Irish migrant networks and rivalries in Spain, 1575-1659 | Schüller, Karin | Article in Book | | 2003 |
| Irish migrants in Europe after Kinsale, 1602-1820 | | Monograph or Collective Volume | Four Courts | 2003 |
| Irish overseers in the antebellum U.S. South | Regan, Joe | Article in Journal | | 2021 |
| Irish rebels and English radicals, 1798-1820 | Smith, A. W. | Article in Journal | | 1955 |
| Irish settlers to the Cape : history of the Clanwilliam 1820 settlers from Cork Harbour | Dickason, Graham Brian | Monograph or Collective Volume | A. A. Balkema | 1973 |
| Irish sugar planters in antebellum Louisiana | Regan, Joe | Article in Journal | | 2022 |
| Irish, Poles and other migrants : a comparative study of migration to Britain and Germany 1820-1918 | Panayi, Panikos | Article in Book | | 2003 |
| Irish-American drama in mid-nineteenth-century America | Trotter, Mary | Article in Book | | 2024 |
| Irish-French relations in Lower Canada | Finnegan, Mary | Article in Journal | | 1985 |
| Irishness on the New Zealand stage 1860-1920: then Boucicault and Allgood tours | Kuch, Peter | Article in Journal | | 2010 |
| It's part of what we are : some Irish contributors to the development of the chemical and physical sciences | Mollan, R. C. (R. Charles) | Monograph or Collective Volume | Royal Dublin Society | 2007 |
| James Anthony Froude: an intellectual biography of a Victorian prophet | Brady, Ciaran | Monograph or Collective Volume | Oxford University Press | 2013 |
| James Bartholomew Blackwell : the strange career of the man from Ennis | Gough, Hugh | Article in Journal | | 1989 |
| James Clarence Mangan : selected writings | Mangan, Sean | Monograph or Collective Volume | University College Dublin | 2004 |
| James Clarence Mangan : the Irish language and the strange case of the tribes of Ireland | MacMahon, Peter | Article in Journal | | 1978 |
| Jameson's Mackinac | Massie, Larry B. | Article in Journal | | 1994 |
| Jenny Mitchel, Young Irelander : a biography | O'Conner, Rebecca, 1910- | Monograph or Collective Volume | O'Conner Trust Publishers | 1988 |
| Joe Howe and the Irish | Punch, Terence M. | Article in Journal | | 1982 |
| John Anderson of Fermoy : the forgotten benefactor | Brunicardi, Niall | Monograph or Collective Volume | Eigse na Mainistreach | 1980 |
| John Anderson's bankruptcy | Brunicardi, Niall | Article in Journal | | 1984 |
| John Austin Grace (1800-1886) educator | Blake, Donal | Thesis | | |
| John Casey, 1820-91 | Gow, Rod | Article in Book | | 2000 |
| John Davis White and the Cashel library | Woodworth, David | Article in Journal | | 1989 |
| John Davis White of Cashel | Jackson, Robert Wyse | Article in Journal | | 1946 |
| John Davis White of Cashel (1820-1893) | Marnane, Denis G. | Article in Journal | | 1994 |
| John Davis White's "Sixty years in Cashel". Parts 1-4 | Marnane, Denis G. | Article in Journal | | 2004 |
| John England of Charleston - Carlow's greatest Corkman | Lynch, Martin | Article in Journal | | 1999 |
| John Fitzgibbon, Earl of Clare : protestant reaction and English authority in late eighteenth-century Ireland | Kavanaugh, Ann C. | Monograph or Collective Volume | Irish Academic Press | 1997 |
| John Gorman (1820-1846) | Mitchell, Kilian J. | Article in Journal | | 2001 |
| John Johnstone and the possibilities of Irishness, 1783-1820 | Davis, Jim | Article in Book | | 2019 |
| John Keegan (1816-1849). Does anybody hereabouts remember Caoch the Piper? | Delaney, Tom | Article in Journal | | 2001 |
| John KIng of Moy | Armstrong, David | Article in Journal | | 2010 |
| John Mitchel - flawed hero. On the 200th anniversary of the birth - 3 November 1815 - of the Young Irelander | Russell, Anthony | Article in Journal | | 2016 |
| John Molony, High Constable of Tulla barony, and the killing of civilians by the military between Bodyke and Tuamgraney in 1817 | Moloney, Denis | Article in Journal | | 2009 |
| John Rastell's proposed voyage to North America from Ireland, 1517-1519 | Piveronus, Peter J. Jr | Article in Journal | | 1971 |
| John Tyndall : essays as a natural philosopher | | Monograph or Collective Volume | Royal Dublin Society | 1981 |
| John Tyndall of Carlow : the Irish inventor of the respirator | Ó Raghallaigh, D. | Article in Journal | | 1942 |
| John Tyndall of Leighlinbridge (2 Aug 1820 - 4 Dec 1893 | Premkumar, Alicia | Article in Journal | | 2015 |
| John Tyndall's Belfast address, 1874 | Smyth, Brian | Article in Journal | | 2024 |
| John Tyndall's travels in Ireland, 1865 | Higgins, Kevin | Article in Journal | | 2020 |
| John Tyndall, 1820-1893 | McMillan, Norman | Article in Book | | 2003 |
| John Windele's 'Irish researches on antiquarian gleanings' | Viney, Michael | Article in Journal | | 1984 |
| Keeping faith : an evocation of the Cork Protestant character, 1820-1920 | D'Alton, Ian | Article in Book | NA | 1993 |
| Kerry Patch : Irish immigrant life in St. Louis | Diamond, Etan | Article in Journal | | 1989 |
| Kilnalag to Williamstone, north county Galway, 1820-1850 | Mulryan-Moloney, Maeve | Article in Book | | 2004 |
| King George's Jubilee celebrated in Tralee in October 1809 | O'Carroll, Gerald | Article in Journal | | 2005 |
| Kinship and Community in Rural Pennsylvania, 1749-1820 | Snydacker, D. | Article in Journal | | 1982 |
| Kites in Spring : a Belfast boyhood | Hewitt, John | Monograph or Collective Volume | Blackstaff Press | 1983 |
| La regeneración de América : el exilio irlandés en los Estados Unidos ante los procesos de independencia en la América hispana (1815–20) | Brownrigg-Gleeson Martínez, José | Article in Book | | 2020 |
| La rumeur Irlandaise, suivi de textes inédits de Marx et Engels sur l'Irlande | Carasso, Jean Pierre | Monograph or Collective Volume | Editions Champ Libre | 1970 |
| Ladies of Llangollen Pottery | Curry, Kevin | Article in Journal | | 2015 |
| Lady Hamilton's mountain lover | Ó Colmáin, Risteard | Article in Journal | | 1999 |
| Lady Morgan in Italy : a traveller with an agenda | Abbate Badin, Donatella | Article in Journal | | 2016 |
| Land tenure in east Westmeath and its influence upon the state of agriculture, 1820-40 | Kenny, M. | Article in Journal | | 1978 |
| Land tenure, farm economy, labour and society in west Limerick, 1820-45 | Curtin, Gerard | Article in Book | | 2009 |
| Landlord-tenant relations in Ulster, 1609-1820 | Crawford, W. H. (William Henry) | Article in Journal | | 1975 |
| Landlords, bankers and merchants : the early Irish banking world, 1700-1820 | Cullen, L. M. (Louis Michael) | Article in Journal | | 1983 |
| Language in Ulster, 1820-50 | Adams, G. B. (George B.) | Article in Journal | | 1973 |
| Law and order | Hillyard, Paddy | Article in Book | | 1983 |
| Law, conflict and social order: County Mayo, 1820-1845 | McCabe, Desmond James | Thesis | | 1991 |
| Laying the nineteenth-century foundations : contributions from a Catholic and a Protestant scholar in the 1820s | Hill, Jacqueline R. | Article in Book | | 2017 |
| Leaders of public opinion in Ireland. 2 vols. | Lecky, William Edward Hartpole, 1838-1903 | Monograph or Collective Volume | | 1903 |
| Leaves from the diary of a Forth farmer in early 1820s | Anonymous | Article in Journal | | 2010 |
| Leaving the "dreadful rocks" : Irish island emigration & its legacy | Royle, Stephen A. (Stephen Arthur) | Article in Journal | | 1999 |
| Legal Offaly : the county courthouse at Tullamore and the legal profession in County Offaly from the 1820s to the present day | Byrne, Michael | Monograph or Collective Volume | Esker Press for Offaly Historical & Archaeological Society | 2008 |
| Leonard MacNally - the most disreputable barrister to have ever practiced at the Irish bar? | O'Connor, Eoin | Article in Journal | | 2015 |
| Leonard McNally : a few facts, on a minor Irish author of the eighteenth century | Pitcher, E. W. | Article in Journal | | 1981 |
| Life and death of a nation | De Blácam, Aodhysandrach | Article in Journal | | 1947 |
| Life and times of William Findley | Ewing, Robert M. | Article in Journal | | 1919 |
| Life expectancy in Dungarvan, 1770-1820 | Hartery, John | Article in Journal | | 1983 |
| Life in a West Cork Clachan | Powell, Geraldine | Article in Journal | | 2018 |
| List of registered freeholders, 1820 | Anonymous | Article in Journal | | 1941 |
| Listoghil : a seasonal alignment? | Meehan, Pádraig | Monograph or Collective Volume | Gungho Publications | 2013 |
| Lizzie Crawford Gillan (1875-1950) and the 'Brethren' mission in China | Gribben, Crawford | Article in Book | | 2015 |
| M. J. Whitty | Toibín, Micheál | Article in Journal | | 1964 |
| Making hay when the sun don't shine: The Rev. William Richardson, science and society in early nineteenth-century Ireland | Blackstock, Allan | Article in Journal | | 2011 |
| Mallow courthouse | Crowley, Seamus | Article in Journal | | 2003 |
| Many journeys, many selves : the travels of Margaret Elizabeth Noble | Gupta, Jayita | Article in Journal | | 2016 |
| Many ways of valuing land: Tithe Assessment procedures of the 1820s/30s - a study of some Co. Cork Civil Parish records | Collins, J.F. | Article in Journal | | 2019 |
| Mapping Sligo in the early nineteenth century, with an atlas of William Larkin's map of County Sligo, 1819 | Horner, Arnold | Monograph or Collective Volume | Wordwell | 2011 |
| Marbhchaoine an Athar Seán Ó Maonaigh | Ó Buachalla, Breandán | Article in Book | | 2000 |
| Marcella Gerrard's Galway estate, 1820-70 : 'awful extermination of tenantry' | Crehan, Tom | Monograph or Collective Volume | Four Courts | 2013 |
| Marching from the margins : twelfth July parades in Scotland, 1820-1914 | McFarland, Elaine W. | Article in Book | | 2000 |
| Margaret Gallagher's notebook | Robinson, J. K. | Article in Journal | | 1975 |
| Marginalia by Edward Berwick | Craig, Maurice James | Article in Journal | | 1948 |
| Maritime Dingle, 1820-1950 | Graham, Daniel | Thesis | | 1998 |
| Markets and fairs in County Cavan | Crawford, W. H. (William Henry) | Article in Journal | | 1984 |
| Marriage settlements in the Registry of Deeds | Beglan, Mary | Article in Journal | | 2002 |
| Marx and Engels on Ireland | Hazelkorn, Ellen | Monograph or Collective Volume | American Institute for Marxist Studies | 1981 |
| Marx, Engels and national movements | Cummins, Ian | Monograph or Collective Volume | Croom Helm | 1980 |
| Marx, Engels and the Irish | Boyd, Andrew, 1921- | Monograph or Collective Volume | Socialist History Society | 2004 |
| Marx, Engels and the Irish question | D'Arcy, Fergus A., 1943- | Article in Book | | 1984 |
| Marx, Engels, and Lenin on Ireland | Fox, Ralph Winston | Monograph or Collective Volume | International Pubg. Co. | 1940 |
| Marx, Engles and Lenin on the Irish revolution | Fox, Ralph Winston | Monograph or Collective Volume | Cork Workers' Club | 1974 |
| Mary Anne Sadlier 1820-1903 : an introduction to her life and work | Brady, Donald | Monograph or Collective Volume | Silan Books | 2018 |
| Mary from Tipperary: A German poem of the Repeal era by an early socialist writer Georg Weerth (1822-1856) | Fischer, Joachim ; Hooker, Eleanor | Article in Journal | | 2023 |
| Matters material and luxurious : eighteenth and early nineteenth-century Irish linen consumption | Collins, Brenda | Article in Book | | 1999 |
| May Tyrants Tremble: The Life of William Drennan, 1754-1820 | Whelan, Fergus | Monograph or Collective Volume | Irish Academic Press | 20 |
| Maynooth | Horner, Arnold | Article in Book | | 1994 |
| Mayor Lynch of Galway: a footnote to Hardiman's 'History of Galway' | Walsh, Paul | Article in Journal | | 2023 |
| Mechanics' and similar institutes in Counties Antrim, Armagh and Down, 1820-1870, and their contribution to the education of the working-class adult | Duffy, Seamus Sean | Thesis | | 1986 |
| Melodramatic conventions and Atlantic history in Dion Boucicault | Howes, Marjorie | Article in Journal | | 2011 |
| Memoirs, begun by himself and concluded by his daughter, Maria Edgeworth. 2 vols. | Edgeworth, Richard Lovell, 1744-1817 | Monograph or Collective Volume | | 1820 |
| Men at war : nineteenth-century Irish war correspondents from the Crimea to China | Mulhall, Daniel | Article in Journal | | 2007 |
| Mercy in Cork, 1837-87 | Bolster, M. A. | Monograph or Collective Volume | [s.n.] | 1987 |
| Michael Angelo Hayes and the Scots Fusilier Guards | Carman, W. Y. | Article in Journal | | 1954 |
| Michael Kehoe : shipbuilder | Sweetman, Billy | Article in Journal | | 2013 |
| Michael Tormey - priest and patriot | Clare, James | Article in Journal | | 2003 |
| Microcredit in prefamine Ireland | Hollis, Aidan | Article in Journal | | 1998 |
| Midas, Kane O’Hara and the Italians : an interplay of comedy between London and Dublin | Burden, Michael | Article in Book | | 2019 |
| Middle class Providence, 1820-1940 | Gilkeson, John S. | Monograph or Collective Volume | Princeton University Press | 1986 |
| Middle class Providence, 1820-1940 | Gilkenson, John | Monograph or Collective Volume | Princeton University Press | 1985 |
| Militarization and politicization in Ireland, 1780-1820 | Bartlett, Thomas | Article in Book | | 1991 |
| Milltown cemetery and the politics of remembrance | Smyth, Jim | Article in Book | | 2017 |
| Minority reports : travel, language and the politics of microspection | Cronin, Michael | Article in Journal | | 2016 |
| Miscellanea. 2. Mrs Tighe's School in Inistioge, January 1788 | Doyle, JosephKirwan, John | Article in Journal | | 2010 |
| Miscellany : Michael Doheny's description of hurling in the 1820s and 1830s | Nolan, William | Article in Journal | | 2002 |
| More printed items from the Wadding Papers (FLK MSS D 1-2, and others) | Fennessy, Ignatius | Article in Journal | | 1999 |
| More urban townlands - Mount Kennett, Courtbrack and Corcanree | Browne, Tony | Article in Journal | | 1999 |
| Mother M. Aloysius Doyle (1820-1908) | Fahy, Mary de Lourdes | Article in Journal | | 1978 |
| Mrs O'Shaughnessy's Court | Stanford, Jane | Article in Journal | | 2013 |
| Negotiating insanity in the southeast of Ireland, 1820-1900 | Cox, Catherine | Monograph or Collective Volume | Manchester University Press | 2012 |
| Nephews, dowries, sons and mothers : The geography of farm and marital transactions in eastern Ireland, c. 1820-1970 | Smyth, W. J. (William James) | Article in Book | | 2000 |
| Nickars and Hamburger beans | Nelson, E. Charles | Article in Journal | | 2004 |
| No. 25 Fitzwilliam Place | Dunne, Roseanne | Article in Journal | | 1996 |
| Northern Ireland ‐ a British isles security complex | Wright, Joanne | Article in Journal | | 1993 |
| Notes : Brigadier General Thomas William Sweeny, USA | Bruce-Briggs, B. | Article in Journal | | 2002 |
| Notes and documents. Adam Smith and Free Trade for ireland | Browning, OscarDundas, HenrySmith, Adam | Article in Journal | | 1886 |
| Notes of Bishop William Delany and John Lawlor, sculptor | Hamilton, Pádraig | Article in Journal | | 2020 |
| Notes on Young's tour, 1777-79 | Cantwell, Brian J. | Article in Journal | | 1952 |
| Notes. Military leadership and discipline - 1789, 1961 (Georg Carl von Dobeln, 1758-1820, an eighteenth century soldier read in the Congo) | Ó Néill, Eoghan | Article in Journal | | 2007 |
| O vzaimosvyazi national'nogo, solsial'nogo i religioznogo v obschchestvennoi zhizni Severnoi Irlandii | Likhacheva, Zh A. | Article in Journal | | 1979 |
| O'Connell's first speech on Catholic affairs | Griffith, Francis | Article in Journal | | 1966 |
| Obituary. John Tyndall | C., G.H. | Article in Journal | | 1894 |
| Oideas Ardeaspaig | Ó Drisceoil, Proinsias | Article in Journal | | 2014 |
| On Ireland | Engels, Friedrich, 1820-1895Marx, Karl, 1818-1883 | Monograph or Collective Volume | Lawrence and Wishart | 1971 |
| On making a portrait of Carlow's John Tyndall. A sculptor's experiences with making posthumous portraits | Cairns, Carol, b.1941 | Article in Journal | | 2024 |
| On the edge; Ireland's off-shore Islands: a modern history | Ferriter, Diarmaid | Monograph or Collective Volume | Profile Books Ltd | 2018 |
| On the structure of wealth-holding in pre-Famine Ireland | Cummins, Neil J. ; Ó Gráda, Cormac | Article in Journal | | 2021 |
| Opera in Dublin, 1798-1820 : Frederick Jones and the Crow Street theatre | Walsh, T. J. | Monograph or Collective Volume | Oxford University Press | 1993 |
| Original letters ... to the rt hon. Henry Flood | | Monograph or Collective Volume | | 1820 |
| Origins of technical education in Carlow | McMillan, Norman | Article in Journal | | 2003 |
| Paddy jumps Jim Crow : Irish-Americans and Blackface Minstrelsy | Nowatzki, Robert | Article in Journal | | 2006 |
| Papers of Richard Joachim Hayes, O.F.M., in Franciscan Library, Killiney, 9 : 1817-1820 | Giblin, Cathaldus | Article in Journal | | 1991 |
| Parliament as theatre: Francis Wheatley's 'The Irish House of Commons' revisited | Cullen, Fintan | Article in Book | | 2016 |
| Passing : race, religion, and the Healy family, 1820-1920 | O'Toole, James M. | Article in Journal | | 1996 |
| Patrick O'Donoghue : Carlow patriot | Rowlands, Jean | Article in Journal | | 1970 |
| Patrick White - educationalist | Forde, Robert | Article in Journal | | 1998 |
| Patronage and poverty in county Down : the case of Patrick Bronte | Adams, Amber M. | Article in Journal | | 1987 |
| Paul Cullen and his contemporaries : with their letters from 1820 to 1902, 5 | Mac Suibhne, Peadar | Monograph or Collective Volume | Leinster Leader | 1977 |
| Paul Cullen and his contemporaries, Vol. 4 : with their letters from 1820 - 1902 | Mac Suibhne, Peadar | Monograph or Collective Volume | Leinster Leader | 1974 |
| Paul Cullen and his contemporaries, with their letters from 1820-1902, Vol. 2 | Mac Suibhne, Peadar | Monograph or Collective Volume | Leinster Leader | 1963 |
| Paul Cullen and his contemporaries, with their letters from 1820-1902, Vol. 3 | Mac Suibhne, Peadar | Monograph or Collective Volume | Leinster Leader | 1965 |
| Paul Cullen and his contemporaries, with their letters from 1820-1902, Vol.1 | Mac Suibhne, Peadar | Monograph or Collective Volume | Leinster Leader | 1961 |
| Paul Walsh as editor and explicator of Beatha Aodha Ruaidh | Ó Muraíle, Nollaig | Article in Book | | 2002 |
| Pedlars and pedling in the St. Lawrence valley | Lebel, Marc | Article in Journal | | 1994 |
| People, politics and power : from O'Connell to Ahern | Collins, Stephen | Monograph or Collective Volume | O'Brien Press | 2007 |
| Perennial Problems of Scottish Catholics : Morale, Personnel and Money | Aspinwall, Bernard | Article in Book | | 2002 |
| Place and class in Cork | Fahy, A. M. | Article in Book | | 1993 |
| Placing the imaginary : Gosford Castle and the Gosford estate, c.1820-1900 | Proudfoot, Lindsay J. | Article in Book | | 2001 |
| Playing the game : sport and ethnic minorities in modern Wales | Evans, NeilO'Leary, Paul | Article in Book | | 2003 |
| Plunkett's legacy : an Irishman's contribution to the rule of law in New South Wales | Earls, Tony | Monograph or Collective Volume | Australian Scholarly Publishing | 2009 |
| Political parties : traditional and modern | McAllister, Ian | Article in Book | | 1983 |
| Politics pictorialised : Free State election posters | Meehan, Ciara | Article in Book | | 2015 |
| Popery in Scotland : Image and Reality, 1820-1920 | Aspinwall, Bernard | Article in Journal | | 1986 |
| Popular song, readers and language : printed anthologies in Irish and Scottish Gaelic, 1780-1820 | Ó Ciosáin, Niall | Article in Book | | 2013 |
| Posing Paddy for empire : Dion Boucicault staging the 'Oirish' | O'Malley-Younger, Alison | Article in Book | | 2013 |
| Post Office savings banks in Donegal, 1881-1918 | Beattie, Seán | Article in Journal | | 2011 |
| Potain's Day | McWilliams, Brendan | Article in Journal | | 2005 |
| Potential productivity of land : 'the gneeve', with particular reference to the Civil parishes of Castlehaven, Kilmoe and Skull in the 1820s-30s | Collins, Jim | Article in Journal | | 2016 |
| Poverty and famine in County Kildare, 1820-1850 | Kiely, Karel | Article in Book | | 2006 |
| Poverty and the Making of the Belfast Charitable Society | Gillespie, Raymond | Article in Book | | 2022 |
| Preventing the parade : the party processions acts in Ireland and Canada | Morrisette, Annie Tock | Article in Journal | | 2018 |
| Priests of Derry 1820-1905 | Daly, Edward | Article in Journal | | 1980 |
| Prince Hohenlohe, Signor Pastorini and miraculous healing in early nineteenth-century Ireland | Geary, Laurence M. | Article in Book | | 1999 |
| Print for the people: the growth in popular writings and reading facilities in Ireland, 1820-50 | Feeney, Mary Isabella (née McGarry) | Thesis | | 1982 |
| Professor John Casey : the mathematician | Casey, Declan | Article in Book | | 2004 |
| Proselytism and perversion in West Clare | Power, Joe | Article in Journal | | 2006 |
| Provincial town life in the early nineteenth century : an artist's impressions | Crawford, W. H. (William Henry) | Article in Journal | | 1994 |
| Public opinion and government policy in Ireland, 1801-46 | McDowell, R. B. (Robert Brendan), 1913-2011 | Monograph or Collective Volume | Faber | 1952 |
| Public sphere and domestic circle : gender and political economy in nineteenth-century Ireland | Foley, Timothy P. (Tadhg) | Article in Book | | 1997 |
| Raiftearaí agus an Craoibhín Aoibhinn | Ó Coigligh, Ciarán | Article in Book | NA | 1994 |
| Reading the Great Hunger? ; In search of Mary Anne Sadlier's young audience | Butler, Stephen | Article in Book | | 2018 |
| Rebel daughters : Ireland in conflict 1798 | Todd, Janet M., 1942- | Monograph or Collective Volume | Viking | 2003 |
| Rebellion at Riohacha, 1820 : local and International networks of revolution, cowardice and masculinity | Brown, Matthew | Article in Journal | | 2005 |
| Rebels and informers : stirrings of Irish independence | Knox, Oliver | Monograph or Collective Volume | John Murray | 1997 |
| Reconsidering Marx and Engels on Ireland | Hazelkorn, Ellen | Article in Journal | | 1983 |
| Records of the general synod of Ulster, 1691-1820 | Anonymous | Monograph or Collective Volume | [s.n.] | 1890 |
| Records of the general synod of Ulster, 1691-1820. 3 vols. | Anonymous | Monograph or Collective Volume | | 1890 |
| Recoveries : neglected episodes in Irish cultural history, 1860-1912 | Foster, John Wilson | Monograph or Collective Volume | University College Dublin Press | 2002 |
| Red Hugh at Dundalk | Donnelly, Mowenna | Article in Journal | | 1957 |
| Reference and valuation of Great and Little Burress, Maryborough, 1822 | Hyland, Jackie | Article in Journal | | 2004 |
| Regency rogue : Dan Donnelly, his life and legends | Myler, Patrick | Monograph or Collective Volume | O'Brien Press | 1976 |
| Religion | McBride, Ian | Article in Book | | 2016 |
| Religion and the Northern Ireland problem | Hickey, John | Monograph or Collective Volume | Gill & Macmillan | 1984 |
| Religion, anti-slavery, and identity: Irish Presbyterians, the United States and transatlantic evangelicalism, c.1820-1914 | Holmes, Andrew R. | Article in Journal | | 2015 |
| Religious conciliation, sectarianism and the public sphere : Dublin politics in the early 1820s | Katsuta, Shunsuke | Article in Book | | 2006 |
| Remembering the year of the French : Irish folk history and social memory | Beiner, Guy | Monograph or Collective Volume | University of Wisconsin Press | 2007 |
| Rent rolls of the Conyngham estate in Co. Clare 1816-1820 | O'Mahony, Christopher | Article in Journal | | 2002 |
| Responding to infanticide in Ireland, 1680-1820 | Kelly, James, 1959- | Article in Book | | 2012 |
| Response of the McDonnell clan to change in early seventeenth century Ulster | McDonnell, Hector | Article in Book | | 2003 |
| Rethinking the origins of the British Prisons Act of 1835 : Ireland and the development of central-government prison inspection, 1820-1835 | Butler, Richard J. | Article in Journal | | 2016 |
| Review article. Encore 'what ish my nation?': Irish theatre and drama in the eighteenth-century Irish theatre | Murray, Christopher | Article in Journal | | 2012 |
| Review Essay. Early Modern Ireland | Carroll, Claire | Article in Journal | | 2005 |
| Revolution and the Napier brothers, 1820-40 | Napier, Priscilla | Monograph or Collective Volume | | 1973 |
| Rhetoric, argumentative and divine : Richard Whately and his discursive project of the 1820s | Patokorpi, Erkki | Monograph or Collective Volume | Peter Lang | 1996 |
| Ribbonism and agrarian violence in county Galway 1819-1820 | Ryan, David | Article in Journal | | 2000 |
| Ribbonism in Tyholland Parish (1820-1840) | Gilmore, Brian | Article in Journal | | 2015 |
| Richard Griffith (c. 1752-1820) | McEvoy, Tony | Article in Book | | 1998 |
| Richard Griffith in India (1770-1780) | Griffith, W. S. | Article in Journal | | 2008 |
| Richard Whately : religious controversialist of the nineteenth century | McKerrow, R. E. (Ray E.) | Article in Journal | | 1979 |
| Riots in Limerick, 1820-1900 | McGrath, John | Article in Book | | 2011 |
| Robbery at Crowcastle : January 1820 | Langan, Pauline | Article in Journal | | 2004 |
| Robbery on the road : post office reward notices, 1820-1870 | | Monograph or Collective Volume | National Print Museum | 2008 |
| Robert agus Roger Francis Cooke : sagairt nua-aimseartha sa naoú haois déag | Ó Cadhla, Breandán | Article in Journal | | 2013 |
| Robert O'Hara Burke : the celebrated Australian explorer | Henry, William | Article in Book | | 2003 |
| Robert O'Hara Burke, the great Australian explorer | Henry, William | Article in Journal | | 1998 |
| Robert Peel's views of the peelers | Seoighe, Mainchín | Article in Journal | | 1974 |
| Rockites, magistrates and parliamentarians: governance and disturbances in pre-Famine rural Munster | Shunsuke, Katsuta | Monograph or Collective Volume | Routledge | 2018 |
| Rocky mountain entrepreneur : Robert Campbell as a fur trade capitalist | Buckley, Jay H. | Article in Journal | | 2003 |
| Royal visits to Dublin, 1821-1911: Pier, procession, Presence Chamber | Milligan, Kathryn | Article in Book | | 2017 |
| Samuel Ferguson : a tourist in Antrim | Patten, Eve | Article in Book | | 1991 |
| Science, politics and society in early nineteenth-century Ireland : the Reverend William Richardson | Blackstock, Allan | Monograph or Collective Volume | UP | 2011 |
| Science, politics and society in early-nineteenth-century Ireland : the Reverend William Richardson | Blackstock, Allan | Monograph or Collective Volume | Manchester University Press | 2013 |
| Scientists as materialists in the periodical press : Tyndall's Belfast address | Lightman, Bernard V., 1950- | Article in Book | | 2004 |
| Scottophobia versus Jacobitism : political radicalism and the press in late eighteenth-century Ireland | Powell, Martyn J. | Article in Book | | 2013 |
| Scripture reading among Irish Catholics in the nineteenth century | Moffitt, Miriam | Article in Book | | 2013 |
| Séamas Ó Liatháin: labhairt agus taifeadadh na Gaeilge i nGaeltacht Thiobraid Árann | Ó Drisceoil, Proinsias | Article in Journal | | 2016 |
| Seán Pléimeann: nótaí beathaisnéise | Ó Macháin, Pádraig | Article in Journal | | 2016 |
| Seanmóin ar an Deastógáil, c.1825 | Ó Broin, Gréagóir | Article in Journal | | 2023 |
| Seeing the second city of the Empire : the engraved illustration in Dublin travel guides (c.1820-30) | Griffith, Angela | Article in Book | | 2023 |
| Selected poems of James Clarence Mangan | Chuto, JacquesMangan, James Clarence, 1803-1849 | Monograph or Collective Volume | Irish Academic Press | 2003 |
| Semiotic phenomenology of rhetoric : eidetic practice in Henry Grattan's Discourse on tolerance | Lanigan, Richard L. | Monograph or Collective Volume | Center for Advanced Research in Phenomenology | 1984 |
| Senator David C. Broderick of California | Purcell, Richard J. | Article in Journal | | 1939 |
| Serving the state : the public sector in Ireland : lectures on the 50th anniversary of the Institute of Public Administration | | Monograph or Collective Volume | Institute of Public Administration | 2009 |
| Shadowboxing in the dark : intelligence and counter-terrorism in Northern Ireland | Finegan, Rory | Article in Journal | | 2016 |
| Shanahoe's famous literary son - John Keegan (1816-1849 | Delaney, Tony | Article in Journal | | 2006 |
| Ship-building in Waterford, 1820-1882: a historical, technical and pictorial study in two volumes | Irish, William | Thesis | | 2000 |
| Shipbuilding in Waterford 1820-1882 : a historical, technical and pictorial study | Irish, Bill | Monograph or Collective Volume | Wordwell | 2001 |
| Shipping and economic development in nineteenth-century Ireland | Solar, Peter Michael | Article in Journal | | 2006 |
| Sir Charles Dilke : a Victorian tragedy | Jenkins, Roy Harris, baron Jenkins of Hillhead, 1920-2003 | Monograph or Collective Volume | Collins | 1958 |
| Smuggling on the Galway and Mayo coasts, 1790s-1820s: the Guernsey connection and its aftermath | Cullen, L. M (Louis Michael) | Article in Journal | | 2017 |
| Snipevale Cottage: Ireland in microcosm | Wellard, Matthew | Article in Journal | | 2012 |
| Social unrest in Doneraile, Killavullen and Castletownroche, 1820-1832 : its broader context | O'Donovan, Edmond | Article in Journal | | 1991 |
| Some aspects of passenger traffic between Britain and Ireland, 1820-1850 | Irvine, H. S. | Article in Book | | 1996 |
| Some aspects of passenger traffic between Britain and Ireland, 1820-50 | Irvine, H. S. | Article in Journal | | 1960 |
| Some aspects of Roman Catholic service in the land forces of the British Crown : c.1750 to c.1820 | Fontana, V. J. L. | Thesis | | |
| Some Irish associations with Sicily | Savage, Roland | Article in Journal | | 1943 |
| Some nineteenth-century drawings of Roscrea interest | Harbison, Peter | Article in Book | | 2007 |
| Some notes on Arthur Young's tour in Co. Wexford | Ildana, An | Article in Journal | | 1920 |
| Some unpublished letters of Cardinal Newman | | Article in Journal | | 1954 |
| Some versions of progress under the Union (with special reference to Robert Owen in the 1820s) | McCormack, W. J. | Article in Book | | 2002 |
| Sources for a study of the mill villages of the Brosna Valley | Kenny, John | Article in Journal | | 2017 |
| Sources of Irish-American genealogy in New England | Daly, Marie E. | Article in Book | | 1985 |
| Speaking ill of the dead | Dungan, Myles | Monograph or Collective Volume | New Island | 2007 |
| St Andrew's Lucan : history, architecture and artworks | Twomey, Valerie | Article in Book | | 2008 |
| St James's Church, Crinken, Co. Dublin | Scannell, James | Article in Journal | | 1994 |
| St Patrick's College, Maynooth, the Irish language revival effort and the Meath-men who made their mark | Ní Mhaonaigh, Tracey
| Article in Journal | | 2022 |
| Stereo-typed to stereotype - Illustrations, 'the most influential novelty' of the nineteenth-century Irish and British press | Kavanagh, Robin J. | Article in Book | | 2008 |
| Stillorgan schoolbay abducted and induced into marriage | Sobolewski, Peter | Article in Journal | | 2022 |
| Straddling : London-Irish actresses in performance | Nussbaum, Felicity | Article in Book | | 2019 |
| Strangers in Ireland | Robinson, Paschal | Article in Journal | | 1932 |
| Stray historical items from the Green Mountain State | O'Brien, Michael J. | Article in Journal | | 1919 |
| Subjects of history : English, Scottish, and Welsh immigrants in New York City, 1820-1860 | Gilheany, Juliana F. | Monograph or Collective Volume | New York University Press | 1989 |
| Success and doubtful image of Irish immigrants in Upper Canada : the case of Montague township 1820-1900 | Lockwood, G. J. | Article in Book | | 1988 |
| Sydney Owenson, Alicia Sheridan Le Fanu and the domestic stage of post-Union politics | Taylor, Colleen | Article in Book | | 2019 |
| Tadhg Gaelach Ó Súilleabháin's 'Pious Miscellany': editions of the Munster bestseller of the early nineteenth century | Sharpe, Richard | Article in Journal | | 2014 |
| Teagasc an Athar de Bhál | Ó Macháin, Pádraig | Article in Journal | | 2007 |
| Terrorism in Northern Ireland | Lee, Alfred McClung | Monograph or Collective Volume | General Hall | 1983 |
| Terroristic narratives : on the (re) invention of peace in Northern Ireland | Edwards, Aaron ; Mc Grattan, Cillian | Article in Journal | | 2011 |
| The "Udienze" series in the Roman archives of Propaganda Fide, 1750-1820 | Fenning, Hugh | Article in Journal | | 1994 |
| The 'losing side ever' : Charles Lever, Walter Scott, and the Irish national tale | Shanahan, Jim | Article in Book | | 2013 |
| The 'strange and unaccountable' John Van Nost : the making of a sculptural career in eighteenth-century Ireland | Sullivan, M. G. | Article in Book | | 2016 |
| The 'Tellicherry' five : the transportation of Michael Dwyer and the Wicklow rebels | Sheedy, Kieran | Monograph or Collective Volume | Woodfield Press | 1997 |
| The 1820 Irish settlement at Clanwilliam, northwestern Cape | Forgrave, W. J. | Article in Book | | 1992 |
| The account-book of William Caldbeck, architect | Craig, Maurice James | Article in Journal | | 1984 |
| The activity of an early Canadian land speculator in Essex County, Ontario : would the real John Askin please stand up | Clarke, John | Article in Journal | | 1982 |
| The almshouse at Inistioge | Dyer, John S. | Article in Journal | | 1998 |
| The apocalypse in Ireland : prophecy and politics in the 1820s | Power, Thomas P | Monograph or Collective Volume | Peter Lang | 2023 |
| The architectural legacy of Eyre Massey, 3rd Lord Clarina (1798-1872) | Potter, Matthew | Article in Journal | | 2002 |
| The Architecture of the Old Museum | Patton, Marcus | Article in Book | | 2023 |
| The Ardagh Boys' School | O'Mahoney, Michael | Article in Journal | | 2014 |
| The area around Drogheda City in 1820-1830 | McCullen, John | Article in Journal | | 2016 |
| The artistic and cultural activities of the Caldwells of Castle Caldwell, 1750-1783 | Barnard, T. C. (Toby Christopher) | Article in Journal | | 2007 |
| The Ascent of John Tyndall: Victorian scientist,
mountaineer, and public intellectual | Jackson, Roland | Monograph or Collective Volume | Oxford University Press | 2018 |
| The autobiography of the Rev. William Hamilton of Garvagh, Belfast & North America 1807-1886 | | Monograph or Collective Volume | Presbyterian Historical Society of Ireland | 1997 |
| The ballad collection of John Davis White | Marnane, Denis G. | Article in Journal | | 2005 |
| The Belcamp Park story: the Swift - Grattan - Markievicz connection | Coyle, Eugene A. | Article in Journal | | 2010 |
| The Belfast banks 1820-1900 : aspects of banking in nineteenth-century Ireland | Ollerenshaw, Philip, 1953- | Article in Journal | | 1982 |
| The Belfast banks 1820-1900 : Aspects of banking in nineteenth-century Ireland | Ollerenshaw, Philip, 1953- | Thesis | | |
| The bond that knit the peasant to the soil: Rural lore and superstition in the work of Daniel Macdonald | O'Sullivan, Niamh
| Article in Book | | 2018 |
| The building of Adare Manor : a family chronicle | Hajba, Anna-Maria | Monograph or Collective Volume | Eastwood Books | 2023 |
| The Burkes of Tintrim House, Whitegate : what happened to the son and heir Edmund Burke? | Crawford-Ooppenheimer, ChristineMadden, PaddyO'Brien, Alfie | Article in Journal | | 2007 |
| The catholic clergy in Ireland, 1820-45 | Cahill, Brid | Thesis | | 1975 |
| The Catholic question in English politics, 1820 to 1830 | Machin, George Ian Thom | Monograph or Collective Volume | | 1964 |
| The Catholic question in English politics, 1820 to 1830 | Mackin, G. I. T. | Monograph or Collective Volume | Clarendon Press | 1964 |
| The chairing of Thomas Spring Rice | Herbert, Robert | Article in Journal | | 1945 |
| The charities and famine in mid-nineteenth-century Ireland | O'Neill, Timothy P. | Article in Book | NA | 1999 |
| The Christian Brothers in Nenagh | G., J. S. | Article in Journal | | 1939 |
| The Christian Brothers in Thurles | Ó Dúgáin, Seán | Article in Book | | 1989 |
| The city of Armagh in the eighteenth century | Clarkson, L. A. (Leslie A.)Simms, George Otto | Article in Book | | 2001 |
| The collected works of James Clarence Mangan : poems | Chuto, JacquesMangan, James Clarence, 1803-1849 | Monograph or Collective Volume | Irish Academic Press | 1999 |
| The Colleen Bawn and tourism in Killarney | Whelan, Robert | Article in Journal | | 2019 |
| The coming of joint-stock banking to Scotland and Ireland 1820-1845 | Munn, C. W. | Article in Book | | 1983 |
| The conflict between Flood and Grattan, 1782-3 | O'Connor, Theresa M. | Article in Book | | 1949 |
| The context and development of historical national accounts in Ireland | Cullen, L. M. (Louis Michael) | Article in Journal | | 2010 |
| The contribution of foreign artists to cultural life in eighteenth-century Dublin | Figgis, Nicola | Article in Book | | 2016 |
| The contribution of Prefessor W. E. Hearn to the preparation of Transactions of the Central Relief Committee of the Society of Friends (1852) | Mitchell, James | Article in Journal | | 2004 |
| The convict priests : Irish Catholicism in early colonial New South Wales | Whitaker, Anne-Maree | Article in Book | | 1996 |
| The correspondence of George III and Lord North from 1768 to 1783. 2 vols. | | Monograph or Collective Volume | | 1867 |
| The correspondence of John Tyndall, Volume 1. Correspondence, 1840-3 | | Monograph or Collective Volume | Pickering & Chatto | 2014 |
| The creative dilemma of Gerald Griffin | Cronin, John | Article in Book | | 1986 |
| The cultural context of legend telling in a west Kerry fishing community | Mac Cárthaig, Críostóir | Article in Journal | | 2017 |
| The demand for land : the United States, 1820-60 | Lebergott, Stanley | Article in Journal | | 1985 |
| The design and decoration of bespoke carriages in late eighteenth-century Dublin | Ahern, Fiona | Article in Journal | | 2014 |
| The diminution of ‘Irish’ Johnstone | Jensen, Oskar Cox | Article in Book | | 2019 |
| The drama of capital : risk, belief, and liability on the Victorian stage | Moody, Jane, 1967- | Article in Book | | 2007 |
| The Drennan-McTier letters 1776-1793, vol. 1 | | Monograph or Collective Volume | Women's History Project in association with the Irish Manuscripts Commission | 1998 |
| The Drennan-McTier letters, 2, 1794-1801 | | Monograph or Collective Volume | Women's History Project in association with the Irish Manuscripts Commission | 1999 |
| The Drennan-McTier letters, 3, 1802-1819 | | Monograph or Collective Volume | Women's History Project in association with the Irish Manuscripts Commission | 1999 |
| The Drogheda textile industry, 1780-1820 | Fitzgerald, John | Article in Journal | | 1981 |
| The Dublin Society of United Irishmen and the politics of the Carey-Drennan dispute, 1792-1794 | Durey, Michael | Article in Journal | | 1994 |
| The early melon and the mechanical gardener : toward an environmental history of timekeeping in the long eighteenth century | Wersan, Kate | Article in Journal | | 2017 |
| The Education of European and Chinese girls at home in the Nineteenth Century | Bruce, EmilyQin, Fang | Article in Book | | 2018 |
| The educational views of John MacHale, part III | MacAtasney, Gerard | Article in Journal | | 1997 |
| The educational views of John McHale. Part I | MacAtasney, Gerard | Article in Journal | | 1994 |
| The emergence of the Irish banking system, 1820-1845 | Barrow, G. L. | Monograph or Collective Volume | Gill & Macmillan | 1975 |
| The ethnic descent of Kentucky's early population | Purvis, Thomas L. | Article in Journal | | 1982 |
| The exodus to America : 1820-70 | Zambrano, Ana Laura | Article in Journal | | 1975 |
| The fall of the Catholic cosmopolitan : Charles O'Conor and the Catholic debate on the Act of Union | Livesey, James | Article in Journal | | 2013 |
| The Famine and New York City | Shrout, Anelise Hanson | Article in Book | NA | 2012 |
| The Famine Irish in Newcastle & Co Durham : Sources for Genealogical Research | Duffy, Godfrey | Article in Journal | | 2001 |
| The feminization of the Canadian frontier. Engendering the "peacable kingdom" myth in the writings of Anne Sadlier (1820-1913) & Isabella Valancy Crawford (1850-1887) | King, Jason | Article in Journal | | 2006 |
| The first Irish photographer : Francis S. Beatty of Belfast | McCaughan, Michael | Article in Journal | | 1986 |
| The Franciscan Third Order Regular in Donegal | Conlan, Patrick, 1940- | Article in Journal | | 1997 |
| The genesis of Canadian Orangeism | Senior, Hereward | Article in Journal | | 1968 |
| The Graigue - Ormond Club | McCormack, Sean | Article in Journal | | 2004 |
| The Grattan mystique | O'Brien, Gerard | Article in Journal | | 1986 |
| The great famine in County Roscommon | Kelly, Mary | Article in Book | | 2018 |
| The history and antiquities of the collegiate and cathedral church of St Patrick near Dublin, from its foundation in 1190 to the year 1819 | Mason, W. M. | Monograph or Collective Volume | | 1820 |
| The history of the town and county of Galway | Hardiman, James | Monograph or Collective Volume | Connacht Tribune | 1958 |
| The Hunt Museum Limerick - North Thomond church silver 1425-1820, September-November 2000 | Hunt Museum, Limerick | Monograph or Collective Volume | The Hunt Museum | 2000 |
| The ideology of imperial reform : enlightened absolutism and the American colonies | Banke, Rachel | Article in Book | | 2021 |
| The immigrant alternative : ethnic and sectarian mutuality among the Liverpool Irish during the nineteenth century | Belchem, John | Article in Book | | 1995 |
| The imperial service of William Aylmer, 1800-14 | Aylmer, Richard John | Article in Journal | | 1997 |
| The IRA and trade unionism, 1922-72 | Hanley, Brian | Article in Book | | 2008 |
| The Irish and American labour, 1820-1920 | Doyle, David | Article in Journal | | 1975 |
| The Irish Baptist foreign mission | Luke, David | Article in Book | | 2015 |
| The Irish community in eighteenth-century Cadiz | Fannin, Samuel | Article in Book | | 2003 |
| The Irish convicts in America and Australia | Magner, Thomas F. | Article in Journal | | 1995 |
| The Irish Franciscans in seventeenth and eighteenth-century Prague | Parez, Jan | Article in Book | | 2003 |
| The Irish in Ashton-under-Lyne in the 1860s | Osgood, Daniel | Article in Journal | | 2000 |
| The Irish in Miramichi | Spray, William A. | Article in Book | | 1988 |
| The Irish in Scotland. North east Clare migration to Renfrewshire | Coffey, Michael J. | Article in Journal | | 2003 |
| The Irish in the Peruvian Andes | Sheen, Rosario | Article in Journal | | 2006 |
| The Irish language in Clare and north Tipperary, 1820 : Bishop Mant's enquiry | Mac Lochlainn, Alf, 1926- | Article in Journal | | 1975 |
| The Irish language in Clare and north Tipperary, 1820 : Bishop Mantis enquiry | Mac Lochlainn, A. | Article in Journal | | 1977 |
| The Irish linen trade, 1820-52 | Solar, Peter Michael | Article in Journal | | 1990 |
| The Irish mission in west Florida | Din, Gilbert C. | Article in Journal | | 1971 |
| The Irish paper pound of 1797-1820 : some cliometrics of the Bullionist debate | Ó Gráda, Cormac | Monograph or Collective Volume | Oxford UP | 1993 |
| The Irish parliamentary tradition : With three essays on the Treaty debate by F.S.L. Lyons | Lyons, F. S. L. (Francis Stewart Leland) | Monograph or Collective Volume | Gill & Macmillan|Barnes & Noble Books | 1973 |
| The Irish postal services in the 1820s | Bagnall, Sean | Article in Book | | 2013 |
| The Irish question in Karl Marx's and Friedrich Engels's writings on capitalism and empire | Dix, Dermot,Mathur, Chandana, | Article in Book | | 2009 |
| The Irish-American novel in Australia: Mary Anne Sadlier, Christine Faber and nineteenth-century diaspora fiction | Molloy, Kevin | Article in Journal | | 2019 |
| The Irish-Catholics-in-science debate : John Tyndall, Cardinal Cullen and the uses of science at Castleknock College in the nineteenth century | Murphy, James H. | Article in Book | | 2011 |
| The Jackson Museum (The Brophy Report) | O'Shea, Sean | Article in Journal | | 2004 |
| The journal of Mrs Arbuthnot, 1820-32 | Arbuthnot, HarrietBamford, FrancisWellesley, Gerald, 7th duke of Wellington | Monograph or Collective Volume | Macmillan | 1950 |
| The Journal of Thomas Moore. Volume 1 [1818-1820] | | Monograph or Collective Volume | University of Delaware Press|Associated University Presses | 1983 |
| The justice of the peace in Ireland | McNally, Leonard | Monograph or Collective Volume | | 1820 |
| The landed gentry of Galway, 1820-80 | Melvin, Patrick Gerard | Thesis | | 1991 |
| The languages of resistance: national particularities, universal aspirations | Noble, Andrew | Article in Book | | 2012 |
| The last will and testament of Henry Flood : context and text | Kelly, James, 1959- | Article in Journal | | 2001 |
| The legend of Dan Donnelly - Regency rogue | Breen, Larry | Article in Journal | | 2012 |
| The Lewis bedcover | Simpson, M. Lesley | Article in Journal | | 1997 |
| The life and opinions of Leonard MacNally (1752-1820) : playwright, barrister, United Irishman, and informer | Bartlett, Thomas | Article in Book | | 2001 |
| The life and opinions of Leonard MacNally (1752-1820), playwright, barrister, United Irishman and informer | Bartlett, Tom | Article in Book | | 2007 |
| The life and times of Daniel Murray : Archbishop of Dublin, 1823-1852 | Morrissey, Thomas J. | Monograph or Collective Volume | Messenger Publications | 2018 |
| The Lilley collection | Ballard, Linda-May | Article in Journal | | 1989 |
| The lonely rebellion of William Drennan | Rice, Adrian | Article in Book | | 1991 |
| The Loughan Spire: General Richard Dalton's lost Habsburg monument in County Westmeath | Murtagh, Harman | Article in Journal | | 2023 |
| The making of an Irish and a Jewish Boston, 1820-1900 | Dwyer-Ryan, Meaghan | Article in Journal | | 2016 |
| The Marlay letters, 1778-1820 | | Monograph or Collective Volume | Constable | 1937 |
| The night and life on the streets : disorder in an Irish town in the 1820s and 1830s | Caball, Marc | Article in Journal | | 2023 |
| The Oral Tradition and Literature in Ireland and Scotland : Popular Culture in Robert Burns and Charles Maturin | Kelly, Jim, 1976- | Article in Journal | | 2007 |
| The Orange Order and social violence in mid-nineteenth-century Saint John | See, Scott W. | Article in Journal | | 1984 |
| The Order of Liberators | Barron, Declan | Article in Journal | | 2020 |
| The Origins and Interconnections of Three Eighteenth Century Landowners of the Barony of Demifore, Co. Meath | Palcic, Úna | Article in Journal | | 2024 |
| The origins of Dublin's Mansion house Round Room | Clark, Mary | Article in Journal | | 2022 |
| The origins of the Irish in Newcastle and County Durham | Duffy, Godfrey | Article in Journal | | 2002 |
| The other famine: the 1822 crisis in county Leitrim | Mac Atasney, Gerard | Monograph or Collective Volume | History Press Ireland | 2010 |
| The Palmerston estate : improvement and assisted emigration before 1850 | Power, Thomas P. | Article in Book | | 2024 |
| The pamphlet campaign against Henry Grattan in 1797-99 | Mahony, Robert | Article in Journal | | 1987 |
| The poetry of James Clarence Mangan | Diskin, Patrick | Article in Journal | | 1960 |
| The politics of Irish drama : plays in context from Boucicault to Friel | Grene, Nicholas | Monograph or Collective Volume | Cambridge University Press | 1999 |
| The portrait collection in the great hall of the royal hospital, Kilmainham, Dublin | Fenlon, Jane | Article in Book | | 2016 |
| The Post Office in Ireland | Ferguson, Stephen | Article in Book | | 2008 |
| The Prince and the co-operative pioneer | Quinn, Anthony P. | Article in Book | | 1989 |
| The proclamations of Ireland 1660-1820, Volume 1 : proclamations issued during the reign of Charles II, 1660-85 | | Monograph or Collective Volume | Irish Manuscripts Commission | 2014 |
| The proclamations of Ireland 1660-1820, Volume 2 : proclamations issued durign the reign of James II, 1685-91; proclamations issued during the reigns of William III, 1689-1702, and Mary II, 1698-94; proclamations issued during the reign of Anne, 1702-14 | | Monograph or Collective Volume | Irish Manuscripts Commission | 2014 |
| The proclamations of Ireland 1660-1820, Volume 3 : proclamations issued during the reign of George I, 1714-27; proclamations issued during the reign of George II, 1727-60 | | Monograph or Collective Volume | Irish Manuscripts Commission | 2014 |
| The proclamations of Ireland 1660-1820, Volume 4 : proclamations issued during the reign of George III. Part I : 1760-90 | | Monograph or Collective Volume | Irish Manuscripts Commission | 2014 |
| The proclamations of Ireland 1660-1820, Volume 5 : proclamations issued during the reign of George III. Part 2 : 1791-1820 | | Monograph or Collective Volume | Irish Manuscripts Commission | 2014 |
| The Protestant nation (1775-1800) | McDowell, R. B. (Robert Brendan), 1913-2011 | Article in Book | | 1967 |
| The provincial commencement of James Field Stanfield | McCormack, Declan | Article in Book | | 2019 |
| The provision of working- and lower-middle-class housing in late nineteenth-century urban Ireland | Cullen, Frank | Article in Journal | | 2011 |
| The pursuit of the heiress : aristocratic marriage in Ireland, 1740-1840 | Malcomson, A. P. W. | Monograph or Collective Volume | Ulster Historical Foundation | 2006 |
| The pursuit of the heiress : aristocratic marriage in Ireland, 1750-1820 | Malcomson, A. P. W. | Monograph or Collective Volume | Ulster Historical Foundation | 1982 |
| The pursuit of the heiress : aristocratic marriage in Ireland, 1750-1820, parts 1-3 | Malcomson, A. P. W. | Article in Journal | | 1981 |
| The quest for Major General Sir Edward Butler KMT | Wissick, Diana | Article in Journal | | 1991 |
| The rector and the rebel | Blackstock, Allan | Article in Book | | 2004 |
| The Reformation in the age of Jefferson | Ingram, Robert G. | Article in Book | | 2021 |
| The regional administration of a central legal policy | McMahon, Richard | Article in Book | | 2000 |
| The reluctant pugilist, from the files of the D.I.B. | Rouse, Paul | Article in Journal | | 2005 |
| The Rev'd Charles Josiah Hort (1820-1887), garrison chaplain at Dublin during the Crimean War | Huddie, Paul | Article in Journal | | 2012 |
| The rich Murphys of Waterford, Málaga, Mexico and London | Murphy, Martin | Article in Journal | | 2012 |
| The rise in sectarianism in 1820s Ireland | Moffitt, Miriam | Article in Book | | 2013 |
| The rise of the Catholic middle class : O'Connellites in County Longford, 1820-50 | O'Ferrall, Fergus | Article in Book | | 2010 |
| The Risorgimento and Ireland, 1820-48 | Nowlan, Kevin B. | Article in Book | | 1960 |
| The Rockite movement in county Cork in the early 1820s | Katsuta, Shunsuke | Article in Journal | | 2003 |
| The role of Vincentian parish missions in the 'Irish counter-reformation' of the mid nineteenth century | Murphy, James H. | Article in Journal | | 1984 |
| The Romantic movement in Ireland in the early nineteenth century | Green, E. R. R. | Thesis | | |
| The rural economy, 1820-1914 | Kennedy, Liam, 1946- | Article in Book | | 1985 |
| The scientific apparatus of Nicholas Callan and other historic insturments | Mollan, R. C. (R. Charles)Upton, John | Monograph or Collective Volume | St Patrick's College|Samton | 1994 |
| The sensational murder of a Mallow land agent in 1862 | Twomey, Dermot | Article in Journal | | 2012 |
| The Seven Other 'Youthful founders' of the Society | | Article in Book | | 2023 |
| The shimmering waste : the life and times of Robert O'Hara Burke | Henry, William | Monograph or Collective Volume | The author | 1997 |
| The significance and legacy of Spanish intervention in west Munster during the battle of Kinsale | O'Scea, Ciaran | Article in Book | | 2003 |
| The significance of landed estates in Ulster, 1600-1820 | Crawford, W. H. (William Henry) | Article in Journal | | 1990 |
| THe Start of the Ethnographic collection in the Old Museum and its Expansion in the Years 1834-1910 | Glover, Winifred | Article in Book | | 2023 |
| The state of Ireland in the 1820's : James Cropper's plan | Charlton, Kenneth | Article in Journal | | 1971 |
| The structure of agriculture in east Westmeath, 1820-40 | [Kenny, M.] | Thesis | | 1974 |
| The Subscription Controversy of the 1820s, 'a religious form if imperialism' and John Mitchel's early influences | Huggins, Michael | Article in Journal | | 2012 |
| The survival of the hedge schools in county Roscommon | Hoban, James | Article in Book | | 1993 |
| The survivor | O'Brien, Alfie | Article in Journal | | 2002 |
| The town of Monaghan : a place inscribed in street and square | Duffy, Patrick J. | Article in Book | | 2004 |
| The transition of reputation : Gerald Griffin | Corcoran, Mark | Article in Book | | 2020 |
| The trial and execution of Anthony Daly | Ryan, David | Article in Book | | 2003 |
| The trial of William Drennan | | Monograph or Collective Volume | Irish Academic Press | 1991 |
| The Truth Teller and Irish Americana of the 1820s | Moriarty, Thomas F. | Article in Journal | | 1964 |
| The ultramontane spirituality of Paul Cullen | Rafferty, Oliver P. | Article in Book | | 2011 |
| The United Irishmen and the Men of no Property :
the Sans Culottes of Belfast | Gray, John | Monograph or Collective Volume | Reclaim the Enlightenment | 2018 |
| The unpublished letters of T. Crofton Croker | Croker, Thomas Crofton, 1798-1854Curtis, Edmund, 1881-1943 | Article in Journal | | 1941 |
| The Verners. Who were they? | Higgins, M.A. | Article in Journal | | 2013 |
| The Victorian buildings of Downpatrick | Oram, Dick | Article in Journal | | 2001 |
| The Waterford merchants and the Irish-Newfoundland provisions trade, 1770-1820 | Mannion, John | Article in Book | | 1980 |
| The weavers of Shronell 250 years ago | Heuston, John | Article in Journal | | 2002 |
| The wild geese of the Antrim MacDonnells | McDonnell, Hector | Monograph or Collective Volume | Irish Academic Press | 1996 |
| The will of Patrick Hughes - a typical will of the 1890s? | Underwood, Rosaleen | Article in Journal | | 2009 |
| The works of William Dargan | O'Donnell, Seán | Article in Journal | | 1987 |
| Theatre in Dublin, 1745-1820 : a calendar of performances | Greene, John C., 1946- | Monograph or Collective Volume | Lehigh University Press|Rowan and Littlefield | 2011 |
| Theatre in Dublin, 1745-1820 : a history | Greene, John C., 1946- | Monograph or Collective Volume | Lehigh University Press|Rowan and Littlefield | 2011 |
| Theft, concealment and exposure: Nathaniel Hone's 'The Spartan Boy' | Laffan, William | Article in Book | | 2016 |
| Theodore O'Hara, author of "The bivouac of the dead" | Sweeny, William M. | Article in Journal | | 1926 |
| Ther Dublin District Surveyors, 1844-1924 | O'Donoghue, Brendan | Article in Journal | | 2019 |
| They beckoned and we came : the settlement of Cherry Valley | Campbell, Colin | Article in Journal | | 1998 |
| Thomas Fawcett, Irish Quaker, American pioneer | Plunkett, Thomas | Article in Journal | | 1900 |
| Thomas Fitzpatrick : mountain man | McGrath, Roger | Article in Book | | 1987 |
| Thomas Moore and the problem of colonial masculinity in Irish Romanticism | Wright, Julia M. | Article in Book | | 2012 |
| Thomas Reids : voyages 1818-20 | McAngellan, Briget | Article in Journal | | 1992 |
| Thomas Reilly - a Crimean veteran from Tulla, Co. Clare | O'Reilly, William | Article in Journal | | 2002 |
| Through American and Irish wars : the life and times of General Thomas W. Sweeny 1820-1892 | Morgan, Jack | Monograph or Collective Volume | Irish Academic Press | 2006 |
| Timothy Burns, Lieutenant Governor of Wisconsin | Gregory, John C. | Article in Journal | | 1925 |
| To Virginia and back again : a short Dáibhí de Barra manuscript in English and its unexpected journey | Ó Floinn, Tony | Article in Journal | | 2024 |
| Together in exile | Murphy, Peter | Monograph or Collective Volume | The author | 1990 |
| Towards democracy : Irish-born elites in Canada and the United States 1820-1920 | Doyle, David Noel | Article in Book | | 2003 |
| Trading loyalties : Sheridan, The School for Scandal and the Irish propositions | Jones, Robert W. | Article in Book | | 2019 |
| Transatlantic radicals and the early American republic | Durey, Michael | Monograph or Collective Volume | University Press of Kansas | 1997 |
| Transferred loyalties : Orangeism in the United States and Ontario | Houston, Cecil J.Smyth, W. J. (William James) | Article in Journal | | 1984 |
| Translating the Vatican : Paul Cullen, power and language in nineteenth-century Ireland | O'Connor, Anne | Article in Journal | | 2014 |
| Transmission and translation of medieval Irish sources in the nineteenth and early twentieth centuries | Cunningham, Bernadette | Article in Book | | 2011 |
| Transport, 1820-1914 | McCutcheon, W. A. | Article in Book | | 1985 |
| Treas órd rialta Shain Froinsias i nDíóse Thuama | Mac Uaid, Bearnard | Article in Journal | | 1959 |
| Trinity Society, Slieverue : introduction to the rules and regulations of Trinity Society of Slieverue, established 1820 | Smith, Gilian | Article in Book | | 2001 |
| Troy to Bray : letters from Dublin to Thurles, 1792-1817 | | Article in Journal | | 2001 |
| Tuireamh agus caoine ar Shéamas Óg Mac Coitir | Ó Buachalla, Breandán | Article in Book | | 2012 |
| Tuireamh an Athar Diarmada Uí Uallacháin le Peadair Sheáin Ó Conchúir. | Ua Súilleabháin, Seán | Article in Book | | 2000 |
| Tutor to the Edgeworths : Rev. Frederic Potterton (1826-1912) | Potterton, Homan | Article in Journal | | 2011 |
| Two forgotten poems by John Tyndall (1841) | DeArce, MiguelMcGing, DeirdreMcMillan, Norman | Article in Journal | | 2013 |
| Two historic chalices : the Rev. B. Peter Magauran chalice 1820, the Cloonclare chalice 1596 | Traynor, Owen | Article in Journal | | 1983 |
| Two Irish states | Laffan, Michael | Article in Journal | | 1984 |
| Tyndall as a mountaineer | Schuster, Lord | Article in Book | | 1945 |
| Tyndall Committee | Feeley, JoeMcMillan, NormanNevin, Martin | Article in Journal | | 2013 |
| Tyndall the philosopher : John Tyndall (1820?-1893) | McMillan, Norman | Article in Journal | | 1992 |
| Typography and style | McGuinne, Dermot | Article in Book | | 2008 |
| Une approche geographique moderne à la fin du dix-huitième siècle : A tour in Ireland d'Arthur Young | Marchand, Jean-Pierre | Article in Journal | | 1981 |
| United Irishmen in democratic America | Cassirer, Reinhard | Article in Journal | | 1938 |
| United islands? the language of resistance | | Monograph or Collective Volume | | 2012 |
| University Church : towards a stylistic context | McCarthy, Michael (Michael Joseph), 1939-2010 | Article in Journal | | 2003 |
| Unrespectable radicals? popular politics in the age of reform | | Monograph or Collective Volume | Ashgate | 2008 |
| Urban elites, civil society and governance in early nineteenth-century Belfast | Allen, Claire | Thesis | | 2010 |
| Victimisation and attitudes towards former political prisoners in Northern Ireland | Brewer, John D. ; Hayes, Bernadette C. | Article in Journal | | 2015 |
| Vincent Priessnitz | Hennig, J. | Article in Journal | | 1946 |
| Virile vernaculars: radical sexuality as social subversion in Irish chapbook verse, 1780-1820 | Carpenter, Andrew | Article in Book | | 2012 |
| Visiones Irlandesas de las Cortes de Cádiz (1810-1820) | Brownrigg-Gleeson, José Shane | Article in Book | | 2013 |
| Visualising the city : images of Ireland's urban world | Boland, Mary Jane | Article in Book | | 2018 |
| Visualising the privileged status of motherhood : the commemoration of women in Irish funerary monuments c.1600 - c.1650 | Hoysted, Elaine | Article in Book | | 2016 |
| Visualizing the Liberator : self-fashioning, dramaturgy, and the construction of Daniel O'Connell | Owens, Gary | Article in Journal | | 1998 |
| Water supplies in Carlow (1820-1926) | Ellis, J. | Article in Journal | | 1948 |
| Wentworth Woodhouse manuscripts : hand list and index | Anonymous | Monograph or Collective Volume | | 1984 |
| West Limerick : crime, popular protest and society, 1820-1845 | Curtin, Gerard | Monograph or Collective Volume | Sliabh Luachra Heritage Group | 2008 |
| What Tyndall read: provenance, contents and significance of the Proby bequest in the Carlow County Council Library | De Arce, MiguelFlahavan, CarmelMcMillan, Norman.D.Nevin, Martin | Article in Journal | | 2011 |
| Whigs on the Green (The Stephen's Green Club) 1840-1990 | Share, BernardSmith, Cornelius, | Monograph or Collective Volume | Gill & Macmillan | 1990 |
| Who killed the Franks family? Agrarian violence in pre-Famine Cork | Cronin, Denis | Monograph or Collective Volume | Four Courts | 2009 |
| Who wants a united Ireland? | Harvey, Cox W. | Article in Journal | | 1985 |
| Who was Samuel Sproule? | Maguire, A. | Article in Journal | | 1999 |
| Why the Highlands did not starve : Ireland and highland Scotland during the potato famine | Devine, Thomas Martin | Article in Book | | 1995 |
| Why the Highlands did not starve : Ireland and Highland Scotland during the potato famine | Devine, Tom M. | Article in Book | | 2007 |
| Why William Rowan Hamilton was not an FRS | Sen, Siddhartha | Article in Journal | | 2005 |
| William Aylmer (1778-1820) and the Aylmers of Paintstown | Aylmer, Richard John | Article in Book | | 1998 |
| William Aylmer, 1772-1820 | Tierney, Martin | Article in Journal | | 1963 |
| William Dargan and the Worcester Shakespeare service | Curry, Kevin | Article in Journal | | 2000 |
| William Drennan and the dissenting tradition | McBride, Ian | Article in Book | | 1993 |
| William Drennan and the portrait of the patriot's portraits | Haines, Keith | Monograph or Collective Volume | Keith Haines | 2007 |
| William Drennan in Irish politics | Hill, C.P. | Thesis | | 1967 |
| William Higgins at the Dublin Society, 1810-20: the loss of a professorship and a claim to the atomic theory | Grossman, M. I. (Mark I.) | Article in Journal | | 2010 |
| William Larkin and the mapping of County Leitrim in the early nineteenth century | Horner, Arnold | Article in Book | | 2019 |
| William Maginn and Blackwood's Magazine | Wardle, R. M. | Article in Journal | | 1939 |
| William McPhail and the 'Wicklow News-Letter' | Rees, Jim | Article in Journal | | 2012 |
| William Moffat Clow and family | Sleator, A.G. | Article in Journal | | 2012 |
| William Neilson Hancock (1820-88) | McEldowney, John | Article in Journal | | 1985 |
| William Sharman Crawford and Ulster radicalism | Gray, Peter | Monograph or Collective Volume | University College Dublin Press | 2023 |
| William Smith O’Brien as an imperialist | Davis, Richard | Article in Book | | 1995 |
| Wit and whimsey | O'Sullivan, Niamh | Article in Journal | | 2019 |
| Women of 'The Nation' | Anton, Brigitte | Article in Journal | | 1993 |
| Women, architecture and building in the east of Ireland, c. 1790-1840 | Thorpe, Ruth | Monograph or Collective Volume | Four Courts | 2013 |
| Workers' housing at Portlaw, County Waterford, Ireland - an assessment | Turk, Maria Elena | Article in Journal | | 2013 |
| Working-class resistance in pre-Famine county Dublin : the Dalkey quarry strikes of the 1820s | Breathnach, Colm | Article in Journal | | 2005 |
| Workshop of the empire, 1820-1914 | Royle, Stephen A. | Article in Book | | 2012 |
| Worlding the village : John O’Keeffe’s ‘eccentric’ pastorals | Burke, Helen | Article in Book | | 2019 |
| Yawls at Killough county Down | Magill, H. C. | Article in Journal | | 1998 |
| Young women, textile labour, and marriage in Europe and China around 1800 | Maynes, Mary JoWaltner, Ann | Article in Book | | 2018 |
| [Review article] Carlow connections from a new book "The Villain of Steam. Life of Dionysius Lardner" by A.L. Martin | McMillan, NormanNevin, Martin | Article in Journal | | 2016 |
| [The Catholic emancipation movement and the people : one view of popular politics in Ireland during the 1820s] | Katsuta, Shunsuki | Article in Journal | | 1995 |
| « Papistes » ou « catholiques » ? « Papisme » ou « catholicité »?, Terminologie confessionnelle et culture politique en Irlande et aux États-Unis à la fin du 18e et au début du 19e siècle | Burke, Martin J. | Article in Journal | | 2002 |
| ‘Charitable societies and the welfare landscape in pre-Famine Belfast’ | McCabe, Ciarán | Article in Book | | 2022 |
| ‘Doing the Needful’: Belfast Charitable Society and its Outdoor Relief Scheme | McIntyre, Aaron D. | Article in Book | | 2022 |
| ‘Idle castle building airy schemes’: John Black III and the ‘improvement’ of eighteenth-century Belfast | Wright, Jonathan Jeffrey | Article in Book | | 2022 |
| ‘Mabel Sharman Crawford’s "Life in Tuscany" : Ulster radicalism in a hot climate’ | Gray, Peter | Article in Book | Palgrave Macmillan | 2017 |
| ‘Nature herself seems in the vapours now’ : poetry and climate change in Ireland, 1600-1820 | Collins, Lucy | Article in Journal | | 2020 |
| ‘Nature herself seems in the vapours now’: poetry and climate change in Ireland 1600–1820 | Collins, Lucy | Article in Book | | 2021 |
| ‘Not to be had elsewhere in this kingdom’: buying and selling exotic plants in Ireland, 1740–1820 | Fleming, David | Article in Book | | 2023 |
| “Confinement of the higher orders”: the social role of private lunatic asylums in Ireland, c. 1820-60 | Mauger, Alice | Article in Journal | | 2012 |
| “Of every land the guest” : Aubrey de Vere’s travels | Fegan, Melissa | Article in Journal | | 2016 |
| “The writer died at Autun in her 26th year” : genre, health tourism and Anna Jameson’s Diary of an Ennuyée | Russo, Stephanie | Article in Journal | | 2016 |