| "A peculiar tramping people" : the Irish in Britain, 1801-1870 | Fitzpatrick, David | Article in Book | Clarendon Press | 1989 |
| "An Union for empire" : the Anglo-Irish Union as an imperial project | Bartlett, Thomas | Article in Book | Colin Smythe | 2002 |
| "And the truest schools for civilization are the forests of America" : John O'Keeffe's The Basket-Maker and Robert Bage's Hermsprong | Carr, Helen | Article in Book | Cambridge University Press | 2009 |
| "God will defend the right" : the Protestant Churches and opposition to home rule | Megahey, Alan | Article in Book | Routledge | 2001 |
| "In the manner of one in Ireland" : the Society of Arts and the Dublin Society, from the earliest years to 1801 | Allan, David G. C. | Article in Journal | | 1990 |
| "The change was not to be in symbol only but also in substance": contested freedoms in the Castlecomer coalfield | Boran, Anne | Article in Book | Four Courts Press | 2024 |
| "The madness of party" : Sectarian homicide in Ireland, 1801-1850 | McMahon, Richard | Article in Journal | | 2007 |
| "This famous island set in a Virginian sea" : Ireland in the British empire, 1690-1801 | Bartlett, Thomas | Article in Book | Oxford University Press | 1998 |
| 'A blessed and ever-enduring fellowship' : the development of John Henry Newman's thought on death and the life beyond | Tolhurst, James | Article in Journal | | 1995 |
| 'Áilleán chuala a luadh le héigsibh' | Ó Paircín, Liam | Article in Book | | 2018 |
| 'Deep solitude and silent cells' - John Windele's 1851 visit to Skellig Michael | Crowley, John | Article in Book | | 2022 |
| 'Eager to produce food': the United Irish Plotholders’ Union | Forrest, Mary | Article in Book | Four Courts Press | 2024 |
| 'Gallwey's Castle, Carrick': Edward Cheney's drawings of Ormond Castle in the early nineteenth-century | Fenlon, Jane | Article in Journal | | 2008 |
| 'If you have a garden in your library, nothing will be wanting': botany and gardens in the collections of Marsh’s Library, Dublin | Hemmens, Susan | Article in Book | | 2022 |
| 'In very good business': Andrew Callnan's house-decorating business, 1790-1804 | Lucey, Conor | Article in Journal | | 2007 |
| 'Lá dá rabhas i m'aonar': Aisling atá luaite le hEoghan Rua Ó Súilleabháin | Ní Íceadha, Máire | Article in Book | | 2018 |
| 'Modest and civil people': religion and society in medieval Galway | Moss, Rachel ; Ó Clabaigh, Colmán | Monograph or Collective Volume | Four Courts Press | 2022 |
| 'Not ... an equal, but ... one of his subjects' : John Henry Newman's perception of the archbishop of Dublin | Ker, Ian | Article in Book | | 2011 |
| 'Permanent tranquility will not be established while the present system is continued' : Charles James Fox and Ireland, 1801-3 | Walsh, Patrick | Article in Book | | 2007 |
| 'Strike out for yourselves' : land and labour from the Boyne to the Barrow | Dunne, Terry | Article in Book | Four Courts Press | 2024 |
| 'The natural leaders' : the Tennent family and the political and intellectual life of Presbyterian Belfast, c.1801-1832 | Wright, Jonathan Jefferey | Thesis | | 2010 |
| 19th century Ireland, 1801-1914 | Mulvey, H. F. | Article in Book | | 1971 |
| A "soviet at Galway"? William J. Larkin, Stephen Cremen and the town tenant mobilization of May 1922 | Cunningham, John, 1957- | Article in Book | Four Courts Press | 2024 |
| A 'bolshie spirit'? Agrarian mobilizations in Co. Galway in 1920 | Burke, Jonny | Article in Book | Four Courts Press | 2024 |
| A bibliography of the writings of William Carleton | Hayley, Barbara | Monograph or Collective Volume | [s.n.] | 1985 |
| A dictionary and investigation of the Dublin book trade, 1801-1850 | Benson, Charles | Thesis | | 2000 |
| A dictionary of Irish saints | Ó Riain, Pádraig | Monograph or Collective Volume | Four Courts Press | 2011 |
| A dictionary of Irish saints : second edition | Ó Riain, Pádraig | Monograph or Collective Volume | Four Courts Press | 2025 |
| A famine in Irish politics | Donnelly, James S., Jr | Article in Book | | 1989 |
| A firm of Dublin cabinet-makers, Mack, Williams & Gibton | Alexander, Angela | Article in Journal | | 1995 |
| A glorious extravaganza : the history of Monkstown parish church | Murphy, Etain | Monograph or Collective Volume | Wordwell | 2003 |
| A History of Ireland under the Union 1801 to 1922 : With an Epilogue carrying the story down to the acceptance in 1927 by de Valera of the Anglo-Irish Treaty of 1921 | O'Hegarty, P. S. | Monograph or Collective Volume | | 1952 |
| A history of Ireland under the Union, 1801 to 1922; with an epilogue carrying the story down to the acceptance in 1927 by De Valera of the Anglo-Irish treaty of 1921 | O'Hegarty, P. S. | Monograph or Collective Volume | | 1952 |
| A history of the British Army, 1 : [to 1730]; 2 : To the close of the Seven Years' War; 3 : From the close of the Seven Years' War to the second Peace of Paris, 1763-1793; 4 pts. 1 and 2 : From the fall of the Bastille to the Peace of Amiens, 1789-1801 [includes supplementary vol. of maps]; 5 : From the renewal of the war to the evacuation of Rio de la Plata, 1803-1807; 6 : From the expedition to Egypt, 1807, to the battle of Coruña, January, 1809; 7 : 1809-1810 [includes supplementary vol. of maps]; 8 : 1811-1812 [includes supplementary vol. of maps]; 9 : 1813-1814; 10 : 1814-1815 [includes supplementary vol. of maps]. 14 vols. | Fortescue, John William, Sir | Monograph or Collective Volume | | 1899 |
| A late eighteenth-century Catholic chapel at Kilmurry, county Wicklow | Corlett, ChrisHicks, Therese | Article in Journal | | 2018 |
| A letter in 'The Gentleman's Magazine' in 1801 | Mernagh, Michael | Article in Journal | | 2010 |
| A male domain? The dining room reconsidered | McCarthy, Patricia | Article in Book | | 2022 |
| A new history of Ireland, vol. 5. Ireland under the Union, i : 1801-1870 | | Monograph or Collective Volume | Clarendon Press | 1989 |
| A note on medieval pottery from Cave Hill and the archaeology of caves | Ivens, R. J. | Article in Journal | | 1988 |
| A page of Irish history : story of University College, Dublin, 1883-1909 | Fathers of the Society of Jesus | Monograph or Collective Volume | Talbot Press | 1930 |
| A political history of the Church of Ireland, 1801-45 | Brynn, Edward Paul | Thesis | | 1968 |
| A protestant state : unionists in government, 1921-39 | Buckland, Patrick | Article in Book | | 2001 |
| A rebel hand : Nicholas Delaney of 1798 : from Ireland to Australia : the story of a Wicklow rebel ... | Owen, FrancesOwen, Patricia | Monograph or Collective Volume | Banner | 1999 |
| A Sligoman of South America | Butler, Eoin | Article in Journal | | 2018 |
| A social and economic history of Belfast, 1801-1825 | Monaghan, J. J. | Thesis | | |
| A Spanish poetess of Co. Waterford origins : Maria Gertrudis Hore (1742-1801) | Walton, Julian | Article in Journal | | 2001 |
| A supplement to a dictionary of Irish saints containing additions and corrections | Ó Riain, Pádraig | Monograph or Collective Volume | Four Courts Press | 2022 |
| A survey of Irish flour milling, 1801-1922 | Bielenberg, Andy | Article in Book | | 2003 |
| A tour of John Windele's in south Kerry, 1848 | Herity, Michael | Article in Journal | | 1970 |
| A various and contentious country: Ireland in 1912 | Murphy, William | Article in Book | | 2012 |
| A wedding, a family feud, a long costly lawsuit - and tragedy. Transcribed from the 'Belfast Telegraph', Monday 4 November 1940 | Lawlor, H. C. (Henry Cairnes), 1870-1943 | Article in Journal | | 2000 |
| Abstruse and insecure? Irish immigrantiIdentity in modern Scotland | Bradley, Joseph M. | Article in Journal | | 1995 |
| Act of Union | Murphy, Seamus | Article in Journal | | 2001 |
| Act of Union bicentenary, 1801-2001 | | Monograph or Collective Volume | Public Record Office of Northern Ireland | 2002 |
| Administration and the public services, 1800-1870 | McDowell, R. B. (Robert Brendan), 1913-2011 | Article in Book | | 1989 |
| Aftermath and adjustment | Connolly, Sean J. | Article in Book | | 1989 |
| Agrarian improvement and social unrest : Lord George Hill and the Gaoth Dobhair sheep war 1856-1860 | Mac Suibhne, Breandàn | Article in Book | | 1995 |
| Aldborough House, Dublin : a construction history | O'Boyle, A. | Article in Journal | | 2001 |
| Amyas Griffith in 18th century Fethard | Law, Edward J. | Article in Journal | | 1998 |
| An account of the proceedings of the governors of the house of industry in Dublin | Anonymous | Monograph or Collective Volume | | 1801 |
| An American in Gloucestershire and Bristol : the diary of Joshua Gilpin, 1796-7 | Woolrich, A. P. | Article in Journal | | 1974 |
| An ancient Norman-French poem on the erection of the walls of New Ross in Ireland, A.D. 1265 | Madden, Frederic, Sir, 1801-1873 | Article in Journal | | 1829 |
| An architect earl : Edward Augustus Stratford (1736-1801) 2nd Earl of Aldborough | Lightbown, Ronald W | Monograph or Collective Volume | OLL Editions | 2008 |
| An Chevalier, Tomás Ó Gormáin (1732-1809), agus léann na Gaeilge san 18ú haois | Ní Dheá, Eilís | Article in Book | | 2018 |
| An essay on Irish bulls with an introduction by Jane Desmarias | Edgeworth, Maria, 1768-1849 | Monograph or Collective Volume | University College Dublin Press | 2006 |
| An historical review of the state of Ireland, from the invasion of that country under Henry II, to its union with Great Britain, 1st January 1801. 2 vols. in 3 | Plowden, Francis, 1749-1829 | Monograph or Collective Volume | | 1803 |
| An imaginative empiricist : Thomas Aiskew Larcom, 1801-1879 and Victorian Ireland | Jordan, Thomas E. | Monograph or Collective Volume | Edwin Mellen Press | 2002 |
| An Irish peer on the continent (1801-03), being a narrative of the tour of Stephen [Moore], 2nd Earl Mount Cashell through France, Italy, etc. as related by Catherine Wilmot | Sadleir, T. U.Wilmot, Catheryne | Monograph or Collective Volume | | 1920 |
| An Irish Teniers? The development of paintings of everyday life in Ireland, c.1780-c.1810 | Boland, Mary Jane | Article in Book | | 2016 |
| An Irishman in India : Abraham Goodall, F.R.C.S. 1801-1892 | Goodall, David | Article in Journal | | 1999 |
| An samhradh sa bhfuacht idir Nollaig is Cáisc: Spléachadh ar fhilithe in Iorras Aithneach san 19ú céad | Ó Ceannabháin, Peadar | Article in Journal | | 2011 |
| An tiarna George Hill agus pobal Ghaoth Dobhair | Póirtéir, Cathal | Monograph or Collective Volume | Cló Iar-Chonnacht | 2023 |
| Anglicizing Tudor Connacht: The Expansion of English Rule in the Lordships of Clanrickard and Hy Many | Mannion, Joseph | Monograph or Collective Volume | Four Courts Press | 2024 |
| Anti-Catholicism, conservatism, and conspiracy : Sir Richard Musgrave's Memoirs of the Different Rebellions in Ireland | Smyth, Jim | Article in Journal | | 1998 |
| Apologia Pro Vita Sua : in vita mea vademecum | MacDonagh, Oliver | Article in Book | | 1990 |
| Archaeological inventory of County Wexford | | Monograph or Collective Volume | The Stationery Office | 1996 |
| Armagh : The Irish Revolution, 1912-23 | Hall, Donal ; Magennis, Eoin | Monograph or Collective Volume | Four Courts Press | 2024 |
| Arrested development : competing histories and the formation of the Irish historical profession, 1801-1938 | Brady, Ciarán | Article in Book | | 2011 |
| Ascendancy : Lady Mount Cashell, Lady Moira, Mary Wollstonecraft and the Union pamphlets | Todd, Janet M., 1942- | Article in Journal | | 2003 |
| Aspects of social life in county Wexford in 1885 | Nolan, Fionnuala | Article in Journal | | 1983 |
| Austrian-Irish hero honoured | Doyle, Ed. | Article in Journal | | 2002 |
| Authority and freedom : John Henry Newman and the formation of youth | McClelland, Vincent Alan | Article in Book | | 1996 |
| Ballinafagh parish | Reid, James Noel | Article in Journal | | 2003 |
| Bandonmen in British forces in the eighteenth century | Dolan, Steve | Article in Journal | | 2020 |
| Barristers in Ireland : an evolving profession since 1921 | Howlin, Niamh | Monograph or Collective Volume | Four Courts Press | 2023 |
| Benjamin Alcock, anatomist | O'Rahilly, Ronan | Article in Journal | | 1947 |
| Benjamin Alcock, the first professor of anatomy and physiology in Queen's College, Cork | O'Rahilly, Ronan | Monograph or Collective Volume | University P. | 1948 |
| Between Burke and the union : reflections on PRO : CO 904/2 | McCormack, W. J. | Article in Book | | 2000 |
| Bigots in bowler hats? The presentation and reception of the loyalist case in Great Britain | Parkinson, Alan | Article in Book | | 2001 |
| Bishop Coyle's pious miscellany | Silke, John J. | Article in Journal | | 1994 |
| Blessed John Henry Newman and the holy eucharist | Norris, Thomas | Article in Book | | 2012 |
| Botany and gardens at the Edward Worth Library, Dublin | Boran, Elizabethanne | Article in Book | | 2022 |
| Botany and Gardens in Early Modern Ireland | NA | Monograph or Collective Volume | Four Courts Press | 2022 |
| Brides of Christ : Women and monasticism in medieval and early modern Ireland | | Monograph or Collective Volume | Four Courts Press | 2023 |
| Brigadier-General John Hope in County Cork in 1798 | O'Neill, Philip | Article in Journal | | 2021 |
| Britain and the Union, 1797-1801 | Jupp, Peter, 1940-2006 | Article in Journal | | 2000 |
| British Parliamentary Papers and the local historian and genealogist | Roulston, William J. | Article in Journal | | 2002 |
| British Parliamentary Papers as a window on pre-Famine urban Ireland, with particular reference to Drogheda | McHugh, Ned | Article in Journal | | 2003 |
| Britishness, Irishness and the Act of Union | Bartlett, Thomas | Article in Book | | 2001 |
| Brought to bed: the spaces and material culture of the lying-in | O’Toole, Emma | Article in Book | | 2022 |
| Building Mitchelstown, 1779-1830 | Fleming, David A. | Monograph or Collective Volume | Four Courts Press | 2025 |
| Burke, Ireland and the counter-revolution, 1791-1801 | O'Sullivan, Tadhg | Article in Book | | 2006 |
| Caleb Threlkeld, Dublin's earliest plant ecologist | Doogue, Declan | Article in Book | | 2022 |
| Caleb Threlkeld: Dissenting minister, physician and botanist | Lawlor, Emer | Article in Book | | 2022 |
| Caleb Threlkeld’s plant records | Doogue, Declan | Article in Book | | 2022 |
| Calendar of the Ancient Records of Dublin, vol. XV. Extracts from the Assembly Rolls of the Corporation January 1797 to October 1801 | Flatman, Richard | Article in Journal | | 2010 |
| Caointe Aogáin Uí Rathaille | Ó Cróinín, Breandán | Article in Book | | 2018 |
| Captain John Savage and the settlement of Shefford from 1792 to 1801. Pt. 2 | Richardson, A. J. H. | Article in Journal | | 2004 |
| Captain Rock, night errant : the threatening letters of pre-famine Ireland, 1801-1845 | Gibbons, Stephen Randolph | Monograph or Collective Volume | Four Courts | 2004 |
| Captain William Bligh in Dublin 1800-1801 | Daly, Gerald J. | Article in Journal | | 1991 |
| Captain William Hutchison and the early Dublin Bay life - boats | Gilligan, H. A. | Article in Journal | | 1980 |
| Cardinal Newman and the Catholic University : a selection from Newman's Dublin writings | McCartney, DonalNewman, John Henry, cardinal, 1801-1890O'Loughlin, Thomas | Monograph or Collective Volume | University College Dublin | 1990 |
| Castlereagh and the making of the Union | Geoghegan, Patrick M. | Article in Book | | 2001 |
| Cathal Brugha : 'an indomitable spirit' | Ó Corráin, DaithI ; Hanley, Gerard | Monograph or Collective Volume | Four Courts Press | 2022 |
| Cathedral of Sts Eunan and Columba, Letterkenny, 1801-2000 | Anonymous | Monograph or Collective Volume | [The Cathedral] | 2001 |
| Catholic responses to the Act of Union | Keogh, Dáire | Article in Book | | 2001 |
| Catholic University Church | O'Carroll, Ciarán | Article in Book | | 2012 |
| Celtic rivalries : Ireland, Scotland and Wales in the British Empire, 1707-1801 | Powell, Martyn J. | Article in Book | | 2011 |
| Centenary celebrations : catalogue of the exhibition, Newman House, 19th -24th July 1954 | University College Dublin | Monograph or Collective Volume | University College | 1954 |
| Chapel Royal, Dublin Castle | Derham, William
| Article in Journal | | 2017 |
| Charles James Fox, the Repeal of Poynings' Law, and the Act of Union 1782-1801 | Pack, Mark | Article in Journal | | 2001 |
| Charles Owen O'Conor, the O'Conor Don : landlordism, liberal Catholicism and Unionism in nineteenth-century Ireland | Enright, Aidan | Monograph or Collective Volume | Four Courts Press | 2022 |
| Charleville races | O'Riordan, Ted | Article in Journal | | 1990 |
| Christ Church, Derriaghy, gravestone inscriptions | | Monograph or Collective Volume | W. N. C. Barr | 1980 |
| Churchmen, tenants and independent opposition, 1850-1856 | Comerford, R.V. (Richard Vincent) | Article in Book | | 1989 |
| Civil Service trade unionism in Ireland. Part 1, 1801-1922|Civil Service trade unionism in Ireland. Part 2, 1922-1990 | Maguire, Martin | Article in Journal | | 2009 |
| Clandeboye | Anonymous | Monograph or Collective Volume | Ulster Architectural Heritage Society | 1985 |
| Coláiste Deuglán in Aird Mhór | Lincoln, Siobhán | Article in Journal | | 2005 |
| Collectanea politica : or the political transactions of Ireland, from ...George III to the present time. 3 vols. | | Monograph or Collective Volume | | 1801 |
| Collecting an empire : the Napoleonic Louvre and the cabinet of curiosities in Catherine Wilmot's An Irish Peer on the Continent | Buck, Pamela | Article in Journal | | 2011 |
| Colonialism and Community Structure in Western Ireland | Taylor, Lawrence J. | Article in Journal | | 1980 |
| Commanders of the British Forces in Ireland, 1796–1922 | Gaynor, Tony | Monograph or Collective Volume | Four Courts Press | 2022 |
| Committee of Secrecy of the House of Commons. 1st and 2nd reports | Anonymous | Monograph or Collective Volume | | 1801 |
| Communality and privacy in one- or two-roomed homes before 1830 | Kinmonth, Claudia | Article in Book | | 2022 |
| Community relations in Ulster, 1801-1920 | Elliott, Marianne | Article in Book | | 2002 |
| Confluences of law and history : Irish Legal History Society discourses and other papers, 2011-21 | NA | Monograph or Collective Volume | Four Courts Press | 2025 |
| Conspiring brotherhoods and contending elites, 1857-1863 | Comerford, R.V. (Richard Vincent) | Article in Book | | 1989 |
| Continued Presbyterian resistance in the aftermath of the rebellion of 1798 in Antrim and Down | Patterson, James G. | Article in Journal | | 1998 |
| Copley papers : correspondence and papers of Elizabeth Mary Copley (c.1801-1887), sister of Maria, Countess Grey, and supporter of Protestant charitable missions in Ireland and Syria | | Monograph or Collective Volume | Durham University Library | 1997 |
| Corravahan House, Co. Cavan | Elliott, Ian, 1936-2015 | Article in Journal | | 2014 |
| Correspondence between J. H. Newman and Archbishop Leahy on the sale of University Church, Dublin, 1857-1864 | Tierney, Mark | Article in Journal | | 1964 |
| Creating Belfast : technical education and the formation of a great industrial city, 1801-1921 | McCloy, Don | Monograph or Collective Volume | Nonsuch | 2009 |
| Cullen, Newman and the Irish Catholic university | Hayes, Charles | Article in Journal | | 1979 |
| Cullen, Newman and the Irish University | Hayes, C. | Article in Journal | | 1980 |
| Dán teagascach dar tús 'A dhuine, cuímhnigh ar do chríochaibh dhéidheancha' | Ní Úrdail, Meidhbhín | Article in Book | | 2018 |
| Daniel Florence O'Leary | Healy, J. G. | Article in Journal | | 1959 |
| Daniel Florence O'Leary, soldier, diplomat, and historian | McNerney, Robert F. | Article in Journal | | 1966 |
| Daniel Joseph O'Connell, S.J. (1896-1982) | O'Connell, Gerald | Article in Journal | | 1984 |
| Day Place, Co. Kerry : "the most respectable locality in Tralee" | Jones, Laurence | Monograph or Collective Volume | Four Courts Press | 2023 |
| Death of a capital? Dublin and the consequences of Union | Dickson, David | Article in Book | | 2001 |
| Decoration and property speculation: newspaper advertisements from Michael Stapleton and Charles Thorp | Lucey, Conor | Article in Journal | | 2007 |
| Defenders of the union : a survey of British and Irish unionism since 1801 | | Monograph or Collective Volume | Routledge | 2001 |
| Defenders of the union : Sir Horace Plunkett | King, Carla | Article in Book | | 2001 |
| Defending the union : parliamentary opinions, 1869 and 1886 | O'Day, Alan | Article in Book | | 2001 |
| Diary of Mr Justice Robert Day of Kerry (1746-1841) | O'Carroll, Gerald | Article in Journal | | 2002 |
| Discovering Medieval Ferns, County Wexford | | Monograph or Collective Volume | Four Courts Press | 2023 |
| Divisions of labour: Inter-managerial conflict among the Wentworth-Fitzwilliam Agents | Byrne, Fidelma | Article in Book | | 2018 |
| Down the aisle or down the isles? : Norman Davies prophecy of the break-up of the United Kingdom | Birnie, Esmond | Article in Book | | 2001 |
| Dr Russell and Newman's conversion | Tristram, Henry | Article in Journal | | 1945 |
| Dublin : the Irish Revolution, 1912-23 | Hughes, Brian | Monograph or Collective Volume | Four Courts Press | 2024 |
| Dublin after the Union : the age of the ultra Protestants, 1801-22 | Hill, Jacqueline R. | Article in Book | | 2003 |
| Dublin and the word in Blessed John Henry Newman (1801-90) | Norris, Thomas J. | Article in Book | | 2013 |
| Dublin Castle and the Act of Union | Quinn, John | Article in Book | | 2003 |
| Dublin's women street traders, 1882-1932 : 'civic evil' and civil disobedience | Martin, Susan Marie | Monograph or Collective Volume | Four Courts Press | 2025 |
| Dublin’s stained glass : a guide to the finest twentieth-century windows | Caron, David | Monograph or Collective Volume | Four Courts Press | 2025 |
| Dún na nGall. 'Fort of the foreigners' : the Vikings and their legacy in Donegal | McAuley, Megan | Monograph or Collective Volume | Four Courts Press | 2024 |
| Eachtra Thoroilbh Mhic Stairn: Scéal rómánsaíochta ón 18ú haois | Newman, Stephen | Article in Book | | 2018 |
| Early modern Duhallow c. 1534-1641: the crisis decline and fall of Irish lordship | Heffernan, David | Monograph or Collective Volume | Four Courts Press | 2022 |
| Early modern Duhallow, c.1534-1641 | Heffernan, David | Monograph or Collective Volume | Four Courts Press | 2022 |
| Edenderry, County Offaly, and the Downshire estate, 1790-1800 | Reilly, Ciarán J. | Monograph or Collective Volume | Four Courts | 2007 |
| Edmund Sexten Pery : The politics of virtue and intrigue in eighteenth-century Ireland | Fleming, David A. | Monograph or Collective Volume | Four Courts Press | 2023 |
| Edward Caswall, Newman and the people of Catholic Ireland | Fenlon, Dermot | Article in Book | | 2006 |
| Eighteenth-Century Scotland and the Three Unions | Kidd, Colin | Article in Journal | | 2005 |
| Élie Bouhéreau : the collections and communities of a Huguenot refugee | | Monograph or Collective Volume | Four Courts Press | 2025 |
| Ellen Hutchins (1785–1815), botanist in West Cork: How did her garden grow? | Hutchins , Madeline | Article in Book | | 2022 |
| Emigration, 1801-1870 | Fitzpatrick, David | Article in Book | | 1989 |
| English countess, Irish earl : the social world of Frances, Countess of Clanricard, 1567-1632 | Cunningham, Bernadette | Monograph or Collective Volume | Four Courts Press | 2026 |
| Enjoying Claret in Georgian Ireland : a history of amiable excess | McCarthy, Patricia | Monograph or Collective Volume | OPEN AIR (Four Courts Press) | 2022 |
| Entertaining royalty after the Union: space, decoration and performance in Charleville Castle, Co. Offaly, 1809 | Hill, Judith | Article in Book | | 2022 |
| Excess mortality and emigration | Donnelly, James S., Jr | Article in Book | | 1989 |
| Extracts from Admiralty passing certificates 1787-1801 | Public Record Office | Article in Journal | | 1966 |
| Faces of Munster | | Monograph or Collective Volume | Appletree Press | 1977 |
| Factory life in Industrial Yarns Ltd, Bray, 1958-98 | Devenish, Kieran | Monograph or Collective Volume | Four Courts Press | 2025 |
| Famine and government response, 1845-1846 | Donnelly, James S., Jr | Article in Book | | 1989 |
| Farming and society since 1700 in the barony of Carbury, Co. Kildare | Whiteside, Lesley | Monograph or Collective Volume | Four Courts Press | 2024 |
| Farnham school and its community | | Monograph or Collective Volume | [Farnham school] | 1996 |
| Fashioning, fitting-out and functionality in the aristocratic town house: private convenience and public concerns | Hayes, Melanie | Article in Book | | 2022 |
| Father Dominic and Newman | Edmund, Fr. | Article in Journal | | 1945 |
| Father Gentili : priest and missionary | MacHugh, James | Monograph or Collective Volume | Clonmore & Reynolds | 1958 |
| Father Gentili, 1801-48 | Gwynn, D. R. (Denis Rolleston), 1893-1972 | Article in Journal | | 1948 |
| Fearful spectres : Charles James Fox and the illusion of Anglo-Irish oppositional unity, 1784-1801 | Schweitzer, D. R. | Article in Journal | | 1990 |
| Field Marshal Francis Maurice Lacy (1725-1801) | O'Neill, JamesThompson, F. Glenn | Article in Journal | | 1987 |
| Field Marshal Lord Strathnairn (1801-1885) | Ó Broin, León, 1902-1990 | Article in Journal | | 2006 |
| File eile gan iomrá - Seán Óg Ó Gadhra | Ó Muraíle, Nollaig | Article in Book | | 2018 |
| Finance and politics in Ireland, 1801-17 | McCavery, Trevor | Thesis | | |
| Finance and politics in Ireland, 1801-17 | McCavery, Trevor | Article in Journal | | 1982 |
| Finance and politics in Ireland, 1801–17 | McCavery, Trevor | Article in Book | | 2019 |
| Finding Mary : the untold story of an Inishowen murder, 1884 | Byrne, Angela | Monograph or Collective Volume | Four Courts Press | 2025 |
| Finn's Leinster Journal 1796-1801 | O'Shea, Sean | Article in Journal | | 2017 |
| Folksongs and ethnography of singing in Patrick Kennedy’s The Banks of the Boro | Cohane, Mary EllenGoldstein, Kenneth S | Article in Journal | | 1996 |
| Foreign service. Peter Murray gives the background to George Chinnery's masterpiece, a portrait of the Kirkpatrick children, unhappy pawns in the politics of colonial India | Murray, Peter | Article in Journal | | 2015 |
| Foster Archer's tour of Ireland in 1801 | Dowling, P. J. | Article in Journal | | 1943 |
| Francis Wheatley : his Irish paintings, 1779-1783 | Kelly, James, 1959- | Article in Book | | 1993 |
| French books on Irish subjects, 1801-1900 | Anonymous | Article in Journal | | 1928 |
| From Carrigdrumruske to Carrick-on-Shannon : the St George estate, 1613-1864 | Lynch, Mairead | Monograph or Collective Volume | Four Courts Press | 2024 |
| From Newman to new women : U.C.D. | | Monograph or Collective Volume | New Island Books | 2001 |
| From patronage to brokerage in the local politics of eastern Ireland | Wilson, Thomas M. | Article in Journal | | 1990 |
| From rebels to unionists : the political transformation of Ulster's Presbyterians | Holmes, Finlay | Article in Book | | 2001 |
| From union to union : nationalism, democracy and religion in Ireland - Act of Union to EU | Girvin, Brian | Monograph or Collective Volume | Gill & Macmillan | 2002 |
| Gaelic grace notes : the musical expedition of Ole Mork Sandvik to Ireland and Scotland | Ó Catháin, Séamas | Monograph or Collective Volume | Institute for Comparative Research in Human Culture|Novus Press | 2014 |
| Gardening at Mitchelstown: John K’Eogh’s Botanalogia universalis Hibernica (Cork, 1735) | Nelson, E. Charles | Article in Book | | 2022 |
| General Kavanagh ? | Cavanagh, Cathal | Article in Journal | | 2008 |
| General O'Leary and South America | Lambert, Eric | Article in Journal | | 1973 |
| General view ... of the King's County | Coote, Charles, Sir | Monograph or Collective Volume | | 1801 |
| General view of the agriculture and manufactures of the Queen's county | Coote, Charles, Sir | Monograph or Collective Volume | | 1801 |
| General view of the agriculture and mineralogy, present state and circumstances of the county of Wicklow | Fraser, Robert | Monograph or Collective Volume | | 1801 |
| George III, Pitt, and the Irish catholics, 1801-1805 | McDougall, D. J. | Article in Journal | | 1945 |
| Germaine de Staël and the response of Sydney Owenson and Maria Edgeworth to the Act of Union | Ó Gallchoir, Clíona | Article in Book | | 2004 |
| Girls at school in nineteenth-century Ireland | McDermid, Jane | Article in Book | | 2016 |
| Gladly learn and gladly teach : Alexandra College and School 1866-1966 | O'Connor, Anne V.Parkes, Susan M. | Monograph or Collective Volume | Blackwater | 1984 |
| Gladstone's first Irish enterprise, 1864-1870 | Comerford, R.V. (Richard Vincent) | Article in Book | Clarendon Press | 1989 |
| Glimpses of the Irish in 19th-century Bogotá | Walsh, Edward | Article in Journal | | 2006 |
| Gothic features in eighteenth-century Irish landscapes | Costello, Vandra | Article in Book | | 2022 |
| Government, parliament and politics in Ireland, 1801-41 | Jupp, Peter, 1940-2006 | Article in Book | | 2003 |
| Hard times: an episode in the life of the Belfast portrait painter Samuel Hawksett | Black, Eileen | Article in Journal | | 2008 |
| Henry Dundas, Scotland and the Union with Ireland, 1792-1801 | Murdoch, Alexander | Article in Book | | 2005 |
| Hispano-Irish women writers of Spain’s Late Enlightenment period | Lewis, Elizabeth Franklin, 1964- | Article in Book | | 2017 |
| History in person : enduring struggles, contentions, practice, intimate identities | | Monograph or Collective Volume | James Currey | 2001 |
| History of Ireland from its union with Great Britain in January 1801 to October 1810. 3 vols. | Plowden, Francis, 1749-1829 | Monograph or Collective Volume | | 1811 |
| History of railway legislation - 1, the early years | Moriarty, Timothy | Article in Journal | | 2005 |
| History of railway legislation - 2. The early years | Moriarty, Jim | Article in Journal | | 2006 |
| History of the origin of the Irish yeomanry ... to which is added the disposition made by the late General Knox for the defence of the country in May 1799 ... | Richardson, William | Monograph or Collective Volume | | 1801 |
| History of the rebellion in Ireland in the year 1798 | Gordon, James | Monograph or Collective Volume | | 1801 |
| History on your doorstep Volume 4: 5 stories of Dublin history | NA | Monograph or Collective Volume | Dublin City Council | 2021 |
| History painting, painting history : the depiction of conflict in Irish art | Kenny, Ruth | Article in Book | | 2016 |
| House and home in Georgian Ireland : spaces and cultures of domestic life | NA | Monograph or Collective Volume | Four Courts Press | 2022 |
| Humor among the treaty makers and fur traders or 'Joe Miller's Joke Book' in the Pacific Northwest | Quimby, George I. | Article in Journal | | 1971 |
| Hutton of Hastings : the life and letters of William Hutton, 1801-61 | Boyce, Gerald E. | Monograph or Collective Volume | Hastings County Council | 1972 |
| Ideas and institutions, 1830-1845 | MacDonagh, Oliver | Article in Book | | 1989 |
| In the blood : Irish racing dynasties | Holland, Anne | Monograph or Collective Volume | O'Brien Press | 2010 |
| Índice de los documentos contenidos en las memorias del general Daniel Florencio O'Leary | | Monograph or Collective Volume | Imprenta Nacional | 1957 |
| Industry and communications, 1801-1845 | Ó Gráda, Cormac | Article in Book | | 1989 |
| Informers, informants & information : the secret history of the 1790s | Bartlett, Thomas | Article in Journal | | 1998 |
| Introduction | Whale, John | Article in Book | | 2000 |
| Introduction : 'revisionism' and the 'revisionist controversy' | Boyce, David George, 1942-O'Day, Alan | Article in Book | | 1996 |
| Introduction : Ireland and the Union, 1801-1870 | MacDonagh, Oliver | Article in Book | | 1989 |
| Introduction: species of domestic spaces | Lucey, Conor | Article in Book | | 2022 |
| Ireland : Radicalism, Rebellion and Union | Powell, Martyn J. | Article in Book | | 2002 |
| Ireland and the empire | Fitzpatrick, David | Article in Book | | 1999 |
| Ireland and the industrial revolution : the impact of the industrial revolution on Irish industry, 1801-1922 | Bielenberg, Andy | Monograph or Collective Volume | Routledge | 2009 |
| Ireland and the Oxford movement | Cooper, Austin | Article in Journal | | 1995 |
| Ireland and the union, 1801-70 | MacDonagh, Oliver | Article in Book | | 1989 |
| Ireland and the Union, a short sketch of the political history of Ireland and of her economic and social condition under the Union | Irish Unionist Alliance | Monograph or Collective Volume | Irish Unionist Alliance | 1914 |
| Ireland in the age of imperialism and revolution, 1760-1801 | McDowell, R. B. (Robert Brendan), 1913-2011 | Monograph or Collective Volume | Clarendon Press | 1979 |
| Ireland under the Union : historiographical reflections | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Journal | | 2002 |
| Ireland under the Union, 1801-1922 | Bew, John | Article in Book | | 2016 |
| Ireland's debt to Newman | Hegarty, W. J. | Article in Journal | | 1945 |
| Ireland, 1850-1870 : post-famine and mid-Victorian | Comerford, R.V. (Richard Vincent) | Article in Book | | 1989 |
| Ireland, c.1870 | Vaughan, W. E. | Article in Book | | 1989 |
| Ireland, empire and union, 1690-1801 | Bartlett, Thomas | Article in Book | | 2004 |
| Irish book-sales catalogues before 1801 | O'Kelley, Francis | Article in Journal | | 1953 |
| Irish convict transportation and the reach of the state in late Hanoverian Britain | Devereaux, Simon | Article in Journal | | 1997 |
| Irish education in the British parliamentary papers in the nineteenth century and after (1801-1920) | Parkes, Susan M. | Monograph or Collective Volume | Cork University Press, History of Education Society | 1978 |
| Irish emigration 1801-1921 | Fitzpatrick, David | Monograph or Collective Volume | | 1984 |
| Irish Emigration, 1801-1921 | Fitzpatrick, David | Monograph or Collective Volume | | 1984 |
| Irish furniture : woodwork and carving in Ireland from the earliest times to the Act of Union; including A dictionary of Irish furniture-makers by John Rogers | Knight of Glin, 1937-Peill, JamesRogers, John | Monograph or Collective Volume | Yale University Press for the Paul Mellon Centre for Studies in British Art | 2007 |
| Irish history since the Union | Ross, John | Article in Journal | | 1926 |
| Irish immigration 1801-1921 | Fitzpatrick, David | Monograph or Collective Volume | Economic and Social History Society of Ireland | 1984 |
| Irish Jesuits and the evolution of religious controversy: an episode from the 1630s | Jackson, Brian | Article in Book | | 2022 |
| Irish nurses in the NHS : an oral history | Ryan, Louise ; McPolin, Gráinne ; Doshi, Neha | Monograph or Collective Volume | Four Courts Press | 2025 |
| Irish parliamentary elections and the influence of the Catholic vote, 1801-20 | Jupp, Peter, 1940-2006 | Article in Journal | | 1967 |
| Irish priests in Spanish Natchez | Holmes, Jack D. L. | Article in Journal | | 1967 |
| Irish Unionism | Good, James Winder | Monograph or Collective Volume | Talbot Press | 1920 |
| Irish unionism, 1870-1922 | Jackson, Alvin | Article in Book | | 2001 |
| Irish wild plants before 1690 | Nelson, E. Charles | Article in Book | | 2022 |
| Isaac Butt, Irish nationality and the conditional defence of the union, 1833-70 | Spence, Joseph | Article in Book | | 2001 |
| James Comerford (1817-1902) : rediscovering a Wexford-born Victorian stuccodore's art | Comerford, Patrick | Article in Journal | | 2012 |
| James Henthorn Todd | Simms, George Otto | Article in Journal | | 1969 |
| James Murphy, bishop of Clogher, 1801-24 | Ó Dufaigh, Seosamh | Article in Journal | | 1968 |
| Jesuit conversions in Wentworth’s Ireland: the Slingsby family, County Cork, in the 1630s | Mac Cuarta, Brian | Article in Book | | 2022 |
| Jesuit involvement in exorcisms in seventeenth-century Ireland | O’Donnell, Alma | Article in Book | | 2022 |
| John Elmsley and the rise of Irish catholic social action in Victorian Toronto | Nicolson, Murray W. | Article in Journal | | 1984 |
| John Henry Cardinal Newman. The idea of a university, defined and illustrated, 1 : In nine discourses delivered to the Catholics of Dublin; 2 : In occasional lectures and essays addressed to the members of the Catholic university. | | Monograph or Collective Volume | | 1947 |
| John Henry Newman | Gallagher, Michael | Article in Book | | 2005 |
| John Henry Newman (1801-1890) | McQuinn, C. | Article in Journal | | 1991 |
| John Henry Newman : centenary essays | Newman, John Henry, cardinal, 1801-1890 | Monograph or Collective Volume | Burns & Oates | 1945 |
| John Henry Newman and Frank Duff | Kennedy, F. | Monograph or Collective Volume | Praedicanda Publications | 1982 |
| John Henry Newman and Orestes A. Brownson as educational philosophers | Blehl, Vincent Ferrer | Article in Journal | | 1997 |
| John Henry Newman and the Roman oratory | Foley, Brian C. | Article in Journal | | 2000 |
| John Henry Newman and the uses of antiquity | Wheeler, Graham John | Article in Journal | | 2018 |
| John Henry Newman et l'Universite catholique d'Irlande. Parts 1-2 | Abalain, Hervé | Article in Journal | | 1981 |
| John Henry Newman's Breviary | Ó Muirí, Réamonn | Article in Journal | | 2013 |
| John Henry Newman's Vision Of The Catholic Medical School | Fleischacker, David | Article in Journal | | 2007 |
| John Henry Newman, the Young Irelanders and the Catholic University of Ireland | Kelly, Stephen | Article in Journal | | 2011 |
| John O'Donovan and Colonel Larcom | Ó Lochlainn, Colm, 1892-1972 | Article in Journal | | 1945 |
| John Semple and his churches | Craig, Maurice James | Article in Journal | | 1989 |
| John Windele | Rockley, Joan E. | Article in Book | | 2018 |
| John Windele and Father John Casey : Windele's visit to Inis Tuaisceart in 1838 | De Brún, Pádraig | Article in Journal | | 1974 |
| John Windele's 'Irish researches on antiquarian gleanings' | Viney, Michael | Article in Journal | | 1984 |
| John Windele's antiquarian scholarship | Cahill, MaryIreland, Aideen M. | Article in Book | | 2009 |
| John Windele's visit to Skellig Michael in 1851 | Harbison, Peter | Article in Journal | | 1976 |
| Joseph Beale : the reluctant immigrant | Dunne, Bridie | Monograph or Collective Volume | Author | 2019 |
| Joshua Jacob | Boylan, Lena, d. 2000 | Article in Journal | | 1983 |
| Justice for Thomas Mooney | Barrow, G. L. | Article in Journal | | 1970 |
| Kilcash : a history | Flood, JohnFlood, Phil | Monograph or Collective Volume | Geography Publications | 1999 |
| Killester : from medieval manor to garden suburb | Brady, Joseph ; McManus, Ruth | Monograph or Collective Volume | Four Courts Press in association with Dublin City Council | 2025 |
| Kiltimon Castle - medieval castle or modern folly? | Corlett, Christiaan | Article in Journal | | 2008 |
| L'Irlande à l’Époque de la Révolution française | Dickinson, Harry Thomas | Article in Journal | | 2005 |
| La experiencia invisible: imigrantes irlandeses en el Perú | McEvoy, Gabriela | Monograph or Collective Volume | Editorial de la Universidad Nacional de San Marcos | 2018 |
| Lámhscríbhinn eile Ó Chontae an Chláir. | Ó Fiannachta, Pádraig | Article in Book | | 1995 |
| Lámhscribhinn Ghaelige ó Mhala | Ó Conchúir, Breandán | Article in Journal | | 1984 |
| Lámhscríbhinní Leabharlann John Rylands agus D.H. Kelly | Mac Peaircín, Liam, 1938-2019 | Article in Journal | | 2006 |
| Land and people, c.1841 | Freeman, T. W. | Article in Book | | 1989 |
| Land is all that matters : the struggle that shaped Irish history | Dungan, Myles | Monograph or Collective Volume | Head of Zeus | 2024 |
| Land reform and legislation in Ireland, 1800-2024 | | Monograph or Collective Volume | Four Courts Press | 2024 |
| Land surveying in Ireland, 1690–1830 | Ó Cionnaith, Finnian | Monograph or Collective Volume | Four Courts Press | 2022 |
| Landlords and tenants | Donnelly, James S., Jr | Article in Book | | 1989 |
| Landowners and parliamentary elections in County Down, 1801-1921 | Walker, B. M. (Brian Mercer) | Article in Book | | 1997 |
| Landscapes of kingship in early medieval Ireland, AD 400-1150 | Gleeson, Patrick | Monograph or Collective Volume | Four Courts Press | 2025 |
| Lansdowne FC : a history | McGrath, Charles Ivar | Monograph or Collective Volume | Open Air (Four Courts Press) | 2022 |
| Laois : the Irish revolution, 1912-23 | Moore, Cormac | Monograph or Collective Volume | Four Courts Press | 2025 |
| Larcom the cartographer: political economy in pre-Famine Ireland | McWilliams, Patrick | Article in Journal | | 2008 |
| Learning a strange native language | O'Byrne, Anne | Article in Journal | | 2007 |
| Legal deposit, 1801-1922 | Kinane, Vincent | Article in Book | | 2000 |
| Legal development, 1801-1879 | Brady, J. C. | Article in Book | | 1989 |
| Lesbian, gay and bisexual teachers’ negotiations of civil partnership and schools : ambivalent attachments to religion and secularism | Gray, BredaNeary, AoifeO'Sullivan, Mary | Article in Journal | | 2018 |
| Letter from David Ker to John Steele | Thornton, Mary Lindsay | Article in Journal | | 1963 |
| Literary representations of the Irish country house : civilisation and savagery under the Union | Kelsall, Malcolm | Monograph or Collective Volume | Palgrave Macmillan | 2003 |
| Literary vs. scientific interpretations of cultural reality in the Aran Islands of Eire | Messenger, John | Article in Journal | | 1964 |
| Literature in English, 1801-1891 | Flanagan, Thomas | Article in Book | | 1989 |
| Litir o Phiaras Mac Gearailt, 1785 | Ó Conchúir, Breandán | Article in Journal | | 1984 |
| Little Tom Drennan : portrait of a Georgian childhood | McNeill, Mary | Monograph or Collective Volume | Dolmen Press | 1962 |
| Logainmneacha i litríocht an 18ú haois | Ó Cearbhaill, Pádraig | Article in Book | | 2018 |
| Lord George Hill (1801-1879) : an improving landlord in Gweedore | Pórtéir, Cathal | Article in Book | | 2022 |
| Loyalists since 1972 | Gillespie, Gordon | Article in Book | | 2001 |
| Magnates and Merchants in Early Modern Kilkenny | | Monograph or Collective Volume | Four Courts Press | 2023 |
| Making good citizens: Ireland under the Union, 1801-1921 | Delaney, Enda | Article in Book | | 2018 |
| Manning : Anglican and Catholic | | Monograph or Collective Volume | | 1951 |
| Marguerite, Countess of Blessington: The turbulent life of a Salonnière and author | Matoff, Susan | Monograph or Collective Volume | University of Delaware Press | 2015 |
| Marriage against inclination : the union and caricature | Robinson, Nicholas | Article in Book | | 2001 |
| Marriage notices published in the South Carolina Gazette | O'Brien, Michael J. | Article in Journal | | 1926 |
| Marsden Haddock and the Androides : entertainment, late Georgian Cork and the wider world | Cronin, Neil | Monograph or Collective Volume | Four Courts Press | 2023 |
| Marx, Connolly, and the Irish labour movement | Nevin, Donal | Article in Book | | 1984 |
| Mary Mercer's Dublin legacy, 1724-2024 | Daly, Peter A. | Monograph or Collective Volume | Four Courts Press | 2024 |
| Mass politics and sectarian conflict, 1823-1830 | Connolly, Sean J. | Article in Book | | 1989 |
| Max Given Mss D/4164/A/22 C pages 5459-5477 | Anonymous | Article in Journal | | 2004 |
| Medicine | Lake, Elizabeth | Article in Book | | 2011 |
| Medicine and publishing in early-nineteenth-century Ireland : production and consumption 1801-1858 | Lake, Elizabeth | Thesis | | |
| Medieval Dublin XX | Duffy, Seán | Monograph or Collective Volume | Four Courts Press | 2025 |
| Medieval Freeholders in Finglas Co. Dublin | Dowling, Eamonn | Article in Journal | | 2002 |
| Memoirs of the different rebellions in Ireland from the arrival of the English, with a particular detail of that which broke out 23 May, 1798 | Musgrave, Richard, Sir, c.1755-1818 | Monograph or Collective Volume | | 1801 |
| Memorias del General Daniel Florencio O'Leary : narración | McNerney, Robert F.O'Leary, D. | Monograph or Collective Volume | University of Texas Press | 1970 |
| Memorias del general Daniel Florencio O'Leary. Narración | O'Leary, D. | Monograph or Collective Volume | Imprenta Nacional | 1952 |
| Michael Healy 1873-1941: An Túr Gloine's stained glass pioneer | Caron, David | Monograph or Collective Volume | Four Courts Press Ltd | 2023 |
| Michael Stapleton : Dublin stuccadore | Curran, C. F. | Article in Journal | | 1939 |
| Mícheál (Óg) Ó hAnnracháin, scríobhaí agus Bíoblóir | Ní Dheá, Eilís | Article in Book | | 2013 |
| Miscellanea. 1. Ecumenism and homeopathy in nineteenth-century Rome: an Irish tragedy | Mac Craith, Mícheál | Article in Journal | | 2015 |
| Miss Battersby : a case study | O'Connor, Éimear | Article in Book | | 2010 |
| Monalty House, Carrickmacross, Co. Monaghan | Hughes,Alan | Article in Journal | | 2022 |
| Mr and Mrs England : the Act of Union as national marriage | Dougherty, Jane Elizabeth | Article in Book | | 2001 |
| Myths, revisionism and the writing of Irish history | Larkin, Emmet | Article in Journal | | 1998 |
| Nathaniel Colgan 1851-1919: the life times and genealogy of an enigmatic Dubliner | Colgan, John
| Monograph or Collective Volume | Four Courts Press | 2022 |
| Nathaniel Colgan, 1851-1919 : the life, times and genealogy of an enigmatic Dubliner | Colgan, John | Monograph or Collective Volume | Four Courts Press | 2022 |
| National education and empire: Ireland and the geography of the national education system | Lougheed, Kevin | Article in Book | | 2012 |
| Nationale Organisationen in Irland 1801-1921 | Alter, P. | Article in Book | | 1978 |
| Nationalism and unionism : from Union to partition | Brennan, EilisGillespie, Sandra | Monograph or Collective Volume | Cambridge University Press | 1996 |
| Nationalisms | Kelly, Matthew | Article in Book | | 2016 |
| Navigating risk : understanding the impact of the conflict on children and young people in Northern Ireland | Browne, Brendan ; Dwyer, Clare | Article in Journal | | 2014 |
| Newman | McHugh, Roger Joseph | Article in Journal | | 1944 |
| Newman : light in winter | Trevor, Meriol | Monograph or Collective Volume | [s.n.] | 1962 |
| Newman : the man and his legacy | Kennedy, Finola | Article in Journal | | 1990 |
| Newman and Father Dominic Barberi | Gwynn, D. R. (Denis Rolleston), 1893-1972 | Article in Journal | | 1945 |
| Newman and his medical school, the fateful first lustrum, 1855-60 | Doolin, William | Article in Journal | | 1953 |
| Newman and his university | Gwynn, D. R. (Denis Rolleston), 1893-1972 | Article in Journal | | 1951 |
| Newman and literary studies in the university | Kleineberger, Hans R. | Article in Journal | | 1990 |
| Newman and Maynooth | Corish, Patrick J. | Article in Book | | 1978 |
| Newman and the Irish Bishops | O'Connell, Marvin R. | Article in Journal | | 2004 |
| Newman and the Irish University | Sencourt, R. | Article in Journal | | 1951 |
| Newman at Beaumont | Brown, Stephen J. | Article in Journal | | 1945 |
| Newman commemoration, 1852-1952 : catalogue of an exhibition of books, documents and manuscripts relating to Cardinal Newman | Anonymous | Monograph or Collective Volume | Browne and Nolan | 1952 |
| Newman House. History and Associations | Igoe, Vivien | Article in Journal | | 2022 |
| Newman in Dublin : fresh light from the archives of Propaganda | White, J. H. | Article in Journal | | 1960 |
| Newman in Dublin : fresh light from the archives of propaganda | Whyte, J. H. | Article in Journal | | 1960 |
| Newman in Ireland | Field, W. N. | Article in Journal | | 1945 |
| Newman's 'idea' and the Irish reality | O'Donoghue, Noel Dermot | Article in Journal | | 1991 |
| Newman's difficult Dublin years | Kelley, Nora M. | Article in Journal | | 1977 |
| Newman's idea of a university, "the Circle of the Sciences", and the constitution of the church | Peterburs, Wulstan | Article in Book | | 2005 |
| Newman's Irish adventure | Williams, William J. | Article in Journal | | 1951 |
| Newman's Irish university | Barr, Colin | Article in Book | | 2020 |
| Newman's Irish years | McHugh, Roger Joseph | Article in Journal | | 1945 |
| Newman's university : idea and reality | McGrath, J. S. F. | Monograph or Collective Volume | Longmans | 1951 |
| Newman's university church : a history and guide | Gaughan, J. Anthony, 1932- | Monograph or Collective Volume | Kingdom Books | 1997 |
| Newman's work for university education in Ireland | McGrath, Fergal | Thesis | | |
| Newman, Faber and the oratorian separation : a reappraisal | Quinn, John F. | Article in Journal | | 1990 |
| Newman, Ireland, and Universality | Docherty, Thomas | Article in Journal | | 2004 |
| Newman, [1] : the pillar of the cloud; [2] : light in winter | Trevor, Meriol | Monograph or Collective Volume | | 1962 |
| Newman: A short biography | Collins, Michael | Monograph or Collective Volume | Messenger Publications | 2019 |
| Newmen's University Church : a history and guide | Gaughan, J. Anthony, 1932- | Monograph or Collective Volume | Kingdom Books | 1997 |
| nineteenth-century Ireland, 1801-1914 | Mulvey, Helen F. | Article in Book | | 1971 |
| Nineteenth-century refurbishments at Kilkenny Castle | Gaffney, Dolores | Article in Journal | | 2003 |
| Nineteenth-century travellers to Early Christian Sites in Co. Kerry | Okasha, Elisabeth | Article in Book | | 2007 |
| Noraid and the Northern Ireland Troubles, 1970–1994 | Collins, Robert | Monograph or Collective Volume | Four Courts Press | 2022 |
| Northern Ireland : 20 years after the cease-fires | Shirlow, Peter ; Coulter, Colin | Article in Journal | | 2014 |
| Notes. A naval echo of 1801 | Nelson, Ivan | Article in Journal | | 2005 |
| Nursing and midwifery in the Poor-Law Unions of Borrisokane and Nenagh, 1882-1922 | McGeeney, Lisa | Monograph or Collective Volume | Four Courts Press | 2022 |
| O'Connell : lawyer and landlord | O'Connell, Maurice R. | Article in Book | | 1984 |
| O'Connell and Irish nationalism | Nowlan, Kevin B. | Article in Book | | 1984 |
| Oben's scenic tour | Harbison, Peter | Article in Journal | | 2004 |
| On 'His Magisties Order' : social relations in West Offaly, the barony of Garrycastle, 1801-1851 | Murphy, Gerard | Thesis | | 2009 |
| One state, several countries : soccer and nationality in a "United" Kingdom | Moorhouse, H. F. | Article in Journal | | 1995 |
| Ordnance Survey maps and official reports | Duffy, Patrick J. | Article in Book | | 2011 |
| Ordnance Survey small-scale maps : indexes, 1801-1998 | Hellyer, Roger | Monograph or Collective Volume | David Archer | 1999 |
| Oriel and the making of John Henry Newman : his mission as college tutor | Nockles, Peter | Article in Journal | | 2009 |
| Palles: The Legal Legacy of the last Lord Chief Baron | | Monograph or Collective Volume | Four Courts Press | 2022 |
| Parliament as theatre: Francis Wheatley's 'The Irish House of Commons' revisited | Cullen, Fintan | Article in Book | | 2016 |
| Parliamentary election results in Ireland, 1801-1922 | | Monograph or Collective Volume | Royal Irish Academy | 1978 |
| Patrick Kennedy, folklorist | Delaney, James | Article in Journal | | 1983 |
| Paul Cullen, John Henry Newman and the movement to create a Catholic University in Ireland, 1854-60 | Barr, Colin | Thesis | | |
| Paul Cullen, John Henry Newman, and the Catholic University of Ireland, 1845-1865 | Barr, Colin | Monograph or Collective Volume | University of Notre Dame Press | 2003 |
| Peer pressure: the Irish House of Lords, 1780-1801 | Murphy, Charlotte | Article in Journal | | 2010 |
| People and places: incidental observations concerning Aran and Connemara in 19th century natural history publications | Mitchell, M.E. | Article in Journal | | 2021 |
| Perchance to Ireland | Hughes, Patrick H. | Monograph or Collective Volume | Minerva Press | 1998 |
| Philanthropy and poor relief before the poor law, 1801-30 | Cousins, Mel | Article in Book | | 2015 |
| Pilib Barún agus an chéad Choláiste Gaeluinne | Uí Fhoghlú, Áine | Article in Journal | | 2018 |
| Pleasure gardens and gardening for pleasure in the Fagel collection at the Library of Trinity College Dublin | Whelan Richardson, Regina | Article in Book | | 2022 |
| Policing Northern Ireland : current issues | Hamilton, Andrew | Article in Journal | | 1993 |
| Political Anglicanism in Ireland, 1691-1801 : from the language of liberty to the language of union | Richardson, Joseph | Article in Book | | 2003 |
| Politics, 1830-1845 | MacDonagh, Oliver | Article in Book | | 1989 |
| Politics, public finance and the British-Irish Act of Union of 1801 | McCavery, Trevor | Article in Journal | | 2000 |
| Popular preaching and the Jesuit mission in seventeenth-century Ireland | Cunningham, Bernadette | Article in Book | | 2022 |
| Portmagee, Co. Kerry : the origins of an Atlantic smuggling village | Casey, Denis | Monograph or Collective Volume | Four Courts Press | 2023 |
| Poverty in pre-Famine Westmeath: The findings of the Poor Commission of 1833 | Byrne, Seán | Monograph or Collective Volume | Four Courts Press | 2023 |
| Poverty, population, and agriculture, 1801-1845 | Ó Gráda, Cormac | Article in Book | | 1989 |
| Pre-Famine fever epidemics : a case study of the Cork Street Fever Hospital, Dublin | McCabe, Ciarán | Monograph or Collective Volume | Four Courts Press | 2025 |
| Pre-university education, 1782-1870 | Akenson, Donald Harman | Article in Book | | 1989 |
| Priests in the independence movement, 1796-8 | Ronan, Myles V. (Myles Vincent) | Article in Journal | | 1946 |
| Production, prices, and exports, 1846-1851 | Donnelly, James S., Jr | Article in Book | | 1989 |
| Protestant alienation in Northern Ireland | Dunn, Seamus ; Morgan, Valerie | Article in Journal | | 1994 |
| Providence and exile in early seventeenth-century Ireland | Caball, Marc | 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 |
| Recollecting Ireland’s flora: botanical information in the ‘Zoilomastix’ (c.1626) of Philip O’Sullivan Beare | Nelson, E. Charles | Article in Book | | 2022 |
| Reforming Galway : civic society, religious change and St Nicholas's collegiate church, 1550-1750 | GIllespie, Raymond | Monograph or Collective Volume | | 2024 |
| Religious Formation of the Laity at the Catholic University of Ireland | Rupert, Jane | Article in Journal | | 2006 |
| Report on the 1989 ESRC quantitative economic conference | Treble, John G. | Article in Journal | | 1990 |
| Representations of self and the colonial 'other' in the Irish national school books | Morgan, Katrina | Article in Book | | 2012 |
| Representing cultural divides in Ireland: Some nineteenth- and early twentieth-century mappings of variation in religion and language | Horner, Arnold | Article in Journal | | 2010 |
| Researching Charles Henry Williams | Goodwillie, John | Article in Journal | | 2017 |
| Rev. Forster Archer's account of Kerry in 1801 | De Brún, Pádraig | Article in Journal | | 1981 |
| Revolutionary Dublin, 1795-1801 : the letters of Francis Higgins to Dublin Castle | Bartlett, ThomasHiggins, Francis | Monograph or Collective Volume | Four Courts | 2004 |
| Richard Pierce : architect and acolyte of the Gothic revival | O'Leary, Barry | Article in Book | | 2008 |
| Richard Pierce : architect and acolyte of the gothic revival | O'Leary, Barry | Article in Journal | | 2005 |
| Rising and Union, 1791-1801 | Geoghegan, Patrick M. | Article in Book | | 2014 |
| Robert Owen, co-operation and Ulster in the 1830s | Geoghegan, Vincent | Article in Book | | 2005 |
| Roinnt tagairtí do Virgil i litríocht na Gaeilge | Ó Liatháin, Pádraig | Article in Book | | 2018 |
| Saoi na Féile - aistí ar litríocht an ochtú haois déag in onóir do Úna Nic Éinrí | | Monograph or Collective Volume | Coiscéim | 2018 |
| Scéal Ghaoth Dobhair | 'ac Fhionnlaoich, Seán | Monograph or Collective Volume | Foilseachain Naisiunta Teo | 1983 |
| Scientists against home rule | Jones, Greta | Article in Book | | 2001 |
| Sea and settlement in Ireland | | Monograph or Collective Volume | Four Courts Press | 2024 |
| Select committee on corn trade between Great Britain and Ireland | Anonymous | Monograph or Collective Volume | | 1801 |
| Sewn by candlelight : the Act of Union and Borough Schools of Swords | Marks, Bernadette | Monograph or Collective Volume | Swords Historical Society | 1998 |
| Sexual discourse in English before the Act of Union : prescription and dissent, 1685-1801 | | Article in Book | | 2002 |
| Sexual expression and genre, 1801-1917 | | Article in Book | | 2002 |
| Shadows fixed forever, the daguerreotype and portraiture 1839-42 : associated activities of two photographic pioneers in Belfast and London | McCaughan, Michael | Article in Book | | 1990 |
| Single lives, single houses | Lucey, Conor | Article in Book | | 2022 |
| Sir Dominic Corrigan (1802-80) : doctor and parliamentarian | O'Brien, Eoin | Article in Journal | | 1984 |
| Sir John Lavery | McConkey, Kenneth | Monograph or Collective Volume | Canongate | 1993 |
| Sir Ralph Abercromby, K. B., 1793-1801 : a memoir by his son | Abercromby, James | Monograph or Collective Volume | [s.n.] | 1861 |
| Sketches of some of the southern counties of Ireland collected during a tour in the autumn of 1797 in a series of letters by G. Holmes | Holmes, George | Monograph or Collective Volume | Ballinakella | 1987 |
| Soccer and society in Dublin : a history of association football in Ireland's capital | Curran, Conor | Monograph or Collective Volume | Four Courts Press | 2023 |
| Social memory, reputation and the politics of death in the medieval Irish lordship | MacGugan, Joanna | Monograph or Collective Volume | Four Courts Press | 2023 |
| Some afterthoughts on the Newman centenary celebrations | Gwynn, D. R. (Denis Rolleston), 1893-1972 | Article in Journal | | 1954 |
| Some impressions of Kildare in 1801 | De Brún, Pádraig | Article in Journal | | 1984 |
| Some Irish immigrant weddings in Nova Scotia 1801-17 | Punch, Terence M. | Article in Journal | | 1974 |
| Some Irish military wives : the register of the troop transport the 'Prescot' - February 1801 | Clarke, Howard R. | Article in Journal | | 2013 |
| Some letters from St John Henry Newman arising from his denunciation of Giacinto Achilli | Cunningham, John M. | Article in Journal | | 2020 |
| Some repercussions of the Act of Union on the Church of Ireland, 1801-20 | Brynn, Edward | Article in Journal | | 1971 |
| Some unpublished letters of Cardinal Newman | | Article in Journal | | 1954 |
| Sources for the study of crime in Ireland, 1801-1921 | Griffin, Brian | Monograph or Collective Volume | Four Courts | 2005 |
| Speculative Minds in Georgian Ireland : Novelty, experiment and widening horizons | | Monograph or Collective Volume | Four Courts Press | 2023 |
| Spirit of Revolution : Ireland from below, 1917–1923 | NA | Monograph or Collective Volume | Four Courts Press | 2024 |
| Statistical survey of the county Dublin ... | Archer, Joseph | Monograph or Collective Volume | | 1801 |
| Statistical survey of the county of Monaghan | Coote, Charles, Sir | Monograph or Collective Volume | | 1801 |
| Stuck on the canvas : Harriet Martin's Canvassing and locational feminism | Hansson, Heidi | Article in Book | | 2007 |
| Survey of newspapers printed in Ireland before 1801 | O'Kelley, Francis | Article in Journal | | 1940 |
| The 'making of men' : the Idea and reality of Newman's university in Oxford and Dublin | Shrimpton, Paul | Monograph or Collective Volume | Gracewing | 2014 |
| The 'natural leaders' and their world : politics, culture and society in Belfast, c. 1801-1832 | Wright, Jonathan Jeffrey | Monograph or Collective Volume | Liverpool University Press | 2012 |
| The 1798 rebellion in perspective | Bartlett, Thomas | Article in Book | | 2000 |
| The Abercromby affair | Gaynor, Tony | Article in Book | | 2003 |
| The act of union | McGuire, James | Article in Book | | 1986 |
| The Act of Union | Hill, Jacqueline R. | Article in Book | | 1998 |
| The Act of Union : its origins and background | Kelly, James, 1959- | Article in Book | | 2001 |
| The Act of Union and "public opinion" | Smyth, Jim | Article in Book | | 2000 |
| The administration of relief, 1846-1847 | Donnelly, James S., Jr | Article in Book | | 1989 |
| The administration of relief, 1847-1851 | Donnelly, James S., Jr | Article in Book | | 1989 |
| The adminstration of relief, 1846-7 | Donnelly, James S., Jr | Article in Book | | 1989 |
| The age of O'Connell, 1830-1845 | MacDonagh, Oliver | Article in Book | | 1989 |
| The architecture of psychological management : the Irish asylums (1801-1922) | Reuber, Markus | Article in Journal | | 1996 |
| The authorship of 'Facts from Gweedore' | Mac Arthur, C. W. P. | Article in Journal | | 2001 |
| The burning of Knockcroghery village Co. Roscommon 1921 | Donlon, Regina | Monograph or Collective Volume | Four Courts Press | 2022 |
| The Burt reclamation scheme | Campbell, Liam | Article in Journal | | 2022 |
| The cardinal and the professor | Boyne, Patricia | Article in Journal | | 1990 |
| The Catholic question, 1801-1812 | Connolly, Sean J. | Article in Book | | 1989 |
| The Catholics and the Union | Geoghegan, Patrick M. | Article in Journal | | 2000 |
| The Chief Secretary | Jenkins, Brian A. | Article in Book | | 2001 |
| The Church of Ireland under the Stuarts | | Monograph or Collective Volume | Four Courts Press | 2025 |
| The Clog-na-fola and some early church hand bells in 'The Beresford Collection' | McAnallen, Brendan | Article in Journal | | 2017 |
| The completion of the Act of Union | Magennis, Eoin | Article in Journal | | 2003 |
| The Cork Library Society of 1801 | Kennedy, Máire | Article in Journal | | 1989 |
| The correspondence of Charles Brodrick (1761-1822), archbishop of Cashel | Jenkins, Deborah | Article in Journal | | 1980 |
| The correspondence of William Good SJ and the Jesuit mission in Elizabethan Ireland,1564–c.1570 | DeWitt, Alexander G.McCoog, Thomas M. | Article in Book | | 2022 |
| The country towns | Camblin, Gilbert | Article in Book | | 1957 |
| The decade of the United Irishmen : contemporary accounts 1791-1801 | | Monograph or Collective Volume | Blackstaff Press | 1997 |
| The destructiveness of constructive unionism : theories and practice, 1890s-1960s | Gailey, Andrew | Article in Book | | 2001 |
| The diocese of Lismore, 1801-69 | MacCarthy, R. B. (Robert B.) | Monograph or Collective Volume | Four Courts | 2008 |
| The distressed society; the struggle for emancipation and independence, 1801-1918 | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1977 |
| The Downshire estates in Ireland under the third marquis of Downshire, 1801-45 : a study in Irish estate management | Maguire, W.A. | Thesis | | 1968 |
| The Downshire estates in Ireland, 1801-45 : the management of Irish landed estates in the early 19th century | Maguire, W. A. (William Alexander) | Monograph or Collective Volume | Clarendon Press | 1972 |
| The Drennan-McTier letters, 2, 1794-1801 | | Monograph or Collective Volume | Women's History Project in association with the Irish Manuscripts Commission | 1999 |
| The Earth between them : Joseph Beale's letters home to Ireland from Victoria, 1852-53 | | Monograph or Collective Volume | Wentworth Books | 1975 |
| The East Donegal Border Petition and the Derry-Donegal Milk War 1934-8 | Beckton, Samuel Gary | Monograph or Collective Volume | Four Courts Press | 2023 |
| The ecomonic history of Cork city from the earliest times to the Act of Union | O'Sullivan, William, 1908-1992 | Monograph or Collective Volume | [s.n.] | 1937 |
| The economic history of Ireland from the Union to the famine | O'Brien, George, 1892-1973 | Monograph or Collective Volume | | 1921 |
| The economy and society, 1830-1845 | MacDonagh, Oliver | Article in Book | Clarendon Press | 1989 |
| The Eirenics of John Henry Newman | Blehl, Vincent Ferrer | Monograph or Collective Volume | | 1996 |
| The elite and popular politics of County Donegal, c.1775-1801 | Wright, Emma | Thesis | | 2017 |
| The failure of Newman's Catholic University of Ireland | Barr, Colin | Article in Journal | | 2001 |
| The famine that wasn't? Ireland, 1799-1801 | Kennedy, Liam ; Solar, Peter | Article in Journal | | 2025 |
| The Forgotten Force: Cong men in the British Military, 1801-1901 | Dolan, Steve | Monograph or Collective Volume | Irish Workhouse Centre | 2018 |
| The founder of 'Thom's Directory' | Hammond, Joseph W. | Article in Journal | | 1946 |
| The gentle Leviathan : Arthur Hill, 2nd marquess of Downshire 1753-1801 | Malcomson, A. P. W. | Article in Book | | 1981 |
| The gentle Leviathan : Arthur Hill, second marquess of Downshire, 1753-1801 | Malcomson, A. P. W. | Article in Book | | 1981 |
| The godless and the burlesque : Newman and the other Irish universities | Flanagan, K. | Article in Book | | 1978 |
| The grand tours of Katherine Wilmot : France 1801-3 and Russia 1805-7 | Mavor, ElizabethWilmot, Katherine | Monograph or Collective Volume | Weidenfeld and Nicolson | 1992 |
| The Gweedore estate of Lord George Hill | Bonar, Margaret | Article in Journal | | 2005 |
| The history of the survey of Ireland commonly called the Down survey, 1655-6 | Petty, William, Sir, 1623-1687 | Monograph or Collective Volume | Irish Archaeological Society | 1851 |
| The idea of a university revisited | Roberts, J. M. | Article in Book | | 1990 |
| The Irish Act of Union | Jackson, Alvin | Article in Journal | | 2001 |
| The Irish Act of Union : a study in high politics 1798-1801 | Geoghegan, Patrick M. | Monograph or Collective Volume | Gill & Macmillan | 1999 |
| The Irish Act of Union, the Catholic question and the collapse of Pitt's ministry: a study in high politics, 1798-1801 | Geoghegan, Patrick Martin | Thesis | | 1997 |
| The Irish administration, 1801-1914 | McDowell, R. B. (Robert Brendan), 1913-2011 | Monograph or Collective Volume | Routledge & Kegan Paul | 1964 |
| The Irish Coroner : Death, murder and politics in Co. Monaghan, 1846-78 | McGoff-McCann, Michelle | Monograph or Collective Volume | Four Courts Press | 2023 |
| The Irish courts of law, 1801-1914 | McDowell, R. B. (Robert Brendan), 1913-2011 | Article in Journal | | 1957 |
| The Irish Defence Forces, 1922-2022: Servant of the Nation | Kinsella, Eoin | Monograph or Collective Volume | Four Courts Press | 2023 |
| The Irish famine of 1799-1801 : market culture, moral economies and social protest | Wells, Roger Anthony Edward | Article in Book | | 1996 |
| The Irish in Australia and New Zealand, 1791-1870 | O'Farrell, Patrick James | Article in Book | | 1989 |
| The Irish in Australia, 1945-68 | O'Brien, John | Article in Book | | 1984 |
| The Irish in North America, 1776-1845 | Doyle, David Noel | Article in Book | | 1989 |
| The Irish Jacobite Army : Anatomy of the force | Murtagh, Harman ; Murtagh, Diarmuid | Monograph or Collective Volume | Four Courts Press | 2024 |
| The Irish lottery, 1780-1801 | Dudley, Rowena | Monograph or Collective Volume | Four Courts | 2005 |
| The Irish Pastoral College of Leuven in 1795: on the eve of the abolition of the University in 1797 | Collier, Mel
| Article in Journal | | 2022 |
| The Irishness of the Irish inn: narratives of travel accommodation in Ireland from Union to Home Rule | James, K. J. | Article in Journal | | 2013 |
| The Jesuit mission in early modern Ireland, 1560-1760 | NA | Monograph or Collective Volume | Four Courts Press | 2022 |
| The Jesuit urban mission in Ireland, c.1598–1650 | Lennon, Colm | Article in Book | | 2022 |
| The Jesuits and music in early modern Ireland | Gillespie, Raymond | Article in Book | | 2022 |
| The journals of the House of Lords, 1509- | Anonymous | Monograph or Collective Volume | | 1767 |
| The judicial stamps of Great Britain and pre-1922 Ireland | | Monograph or Collective Volume | Revenue Society of Great Britain | 1996 |
| The Kilkenny theatre 1801-1819 | Butler, Hubert | Article in Journal | | 1981 |
| The Kilkenny theatre, 1801-1819 | Butler, H. | Article in Journal | | 1946 |
| The king's customs, 1 : An account of maritime revenue & contraband traffic in England, Scotland and Ireland, from the earliest times to the year 1800; 2 : An account of maritime revenue, contraband traffic, the introduction of free trade, and the abolition of the navigation and corn laws, from 1801 to 1855. 2 vols. | Atton, HenryHolland, H. H. | Monograph or Collective Volume | | 1908 |
| The Knave of Trumps: The Life & Times of Count James Louis Rice of Dingle, 1730-1801 | Neligan, Pat | Monograph or Collective Volume | Spa Well Press | 2017 |
| The Latin style of the Irish Litterae Annuae Societatis Jesu | Harris, Jason | Article in Book | | 2022 |
| The law, the constitution and the Act of Union of 1801 | Baxter, Norman | Article in Book | | 2001 |
| The legacy of Newman | Meehan, D. | Article in Journal | | 1946 |
| The letters and diaries of John Henry Newman : Vol 16 | Dessain, C. S.Newman, John Henry, cardinal, 1801-1890 | Monograph or Collective Volume | Nelson | 1965 |
| The letters and diaries of John Henry Newman, Vol 14 : Papal agression, 1850 - 1851 | Blehl, Vincent FerrerDessain, Charles StephenNewman, John Henry, cardinal, 1801-1890 | Monograph or Collective Volume | Nelson | 1963 |
| The letters and diaries of John Henry Newman, Vol 21 : The Apologia, 1864-1865 | Newman, John Henry, cardinal, 1801-1890 | Monograph or Collective Volume | Nelson | 1971 |
| The letters and diaries of John Henry Newman, Vol. 18 : new beginnings in England, 1857-1858 | Newman, John Henry, cardinal, 1801-1890 | Monograph or Collective Volume | Nelson | 1968 |
| The letters and diaries of John Henry Newman. Vol. 15 | Blehl, Vincent FerrerDessain, Charles StephenNewman, John Henry, cardinal, 1801-1890 | Monograph or Collective Volume | Nelson | 1964 |
| The letters and diaries of John Henry Newman. Vol. 17 | Blehl, Vincent FerrerDessain, Charles StephenNewman, John Henry, cardinal, 1801-1890 | Monograph or Collective Volume | Nelson | 1967 |
| The limits of local accommodation : why contentious events remain prone to conflict in Northern Ireland | Hayward, Katy ; Komarova, Milena | Article in Journal | | 2014 |
| The Lismore estate under William Robert Hood Rochfort, 1891-1902, in Counties Cork, Limerick and Tipperary | O'Sullivan, Margaret | Monograph or Collective Volume | Four Courts Press | 2025 |
| The Little Big House at Gweedore: inscribing sociality and space in north-west Ireland, 1842-1859 | James, Kevin J. | Article in Journal | | 2012 |
| The making of a convert : John Henry Newman's Oriel and Littlemore experience | Nockles, Peter | Article in Journal | | 2011 |
| The making of the Union | Geoghegan, Patrick M. | Article in Book | | 2001 |
| The Mansfields of Co. Kildare : a Franco-Irish Catholic elite family and their networks, 1870-1915 | Murphy, Fergus | Monograph or Collective Volume | Four Courts Press | 2023 |
| The Mansfields of Co. Kildare: A Franco-Irish Catholic elite family and their networks 1870-1915 | Murphy, Fergus | Monograph or Collective Volume | Four Courts Press | 2023 |
| The manuscripts of J.B. Fortescue esq., [formerly] preserved at Dropmore, 1 : Papers of Governor Thomas Pitt, 1698-1709, with Pitt family letters and miscellaneous papers to 1779, and correspondence of Lord Grenville, 1782-90; 2 : Grenville correspondence, 1791-4; 3 : 1795-7, with additions, 1787-96, and index and introduction to this and vol. 2; 4 : 1792-Mar. 1799, concerned mainly with the coalition against France and the civil war in Ireland; 5 : Apr.-Oct. 1799, with additions, 1792-9; 6 : Nov. 1799-Mar. 1801; 7 : Feb. 1801-Feb. 1806; 8 : Jan.-Dec. 1806; 9 : 1807-9, with additions 1806-7, edited by R.F. Isaacson. 10 vols. | Historical Manuscripts Commission | Monograph or Collective Volume | | 1892 |
| The Marquess of Downshire and the Royal Downshire Militia 1793-1800 | Nelson, Ivan F. | Article in Journal | | 2007 |
| The mediated politics of place and people : picturing the ‘contested place-making’ of Irish Travellers at Dale Farm | Roosvall, Anna | Article in Journal | | 2016 |
| The members of parliament of Laois and Offaly (Queen's and King's Counties) 1801-1918 | Meehan, P. | Monograph or Collective Volume | Leinster Express Newspapers | 1983 |
| The merchant house in eighteenth-century Drogheda | Durkan, Aisling | Article in Book | | 2022 |
| The Molyneux brothers, the New Science and the Dublin Philosophical Society in the late seventeenth century | Kelly, Patrick | Article in Book | | 2022 |
| The national churches of England, Ireland and Scotland, 1801-1846 | Brown, Stewart J. | Monograph or Collective Volume | Oxford University Press | 2001 |
| The New Reformation Movement in the Church of Ireland, 1801-29 | Brown, Stewart J. | Article in Book | | 2000 |
| The nursery and seed trade in Dublin before 1800 | Reeves-Smyth, Terence | Article in Book | | 2022 |
| The Old Manor Mills at Quartertown | Myers, Kevin | Article in Journal | | 2014 |
| The origin of an enduring myth - Wolfe Tone and Lord George Hill | Mac Arthur, C. W. P. | Article in Journal | | 2002 |
| The Origin of Ireland's Ordnance Survey | Ó Cionnaith, Finnian | Monograph or Collective Volume | Four Courts Press | 2024 |
| The origins of Count O'Sullivan, confidant of Leopold I, king of the Belgians and some other O'Sullivans in Belgium | Casteleyn, Mary | Article in Journal | | 2006 |
| The origins of Dublin's Mansion house Round Room | Clark, Mary | Article in Journal | | 2022 |
| The other within : Ireland, Britain and the Act of Union | Whelan, Kevin | Article in Book | | 2001 |
| The Parliamentary register of Ireland : history of the proceedings and debates of the House of Commons of Ireland | | Monograph or Collective Volume | Thoemmes | 1999 |
| The perjury trial of Patrick Hurly of Moughna, Co. Clare : elite Catholic responses to the emerging Protestant ascendancy | Twomey, Brendan | Monograph or Collective Volume | Four Courts Press | 2024 |
| The Physic Garden at Trinity College, Dublin, in the early eighteenth century | Nelson, E. Charles | Article in Book | | 2022 |
| The problems of unionist literature : Macaulay, Froude and Lawless | Vance, Norman | Article in Book | | 2001 |
| The Protestant ascendancy in Ireland from the American revolution to the Act of Union, 1776-1801 | Asch, Ronald G. | Article in Book | | 1993 |
| The Quaker community in Ballymurray, Co. Roscommon, 1718-1848 | d'Towey, née Creaven, Jacqueline | Monograph or Collective Volume | Four Courts Press | 2024 |
| The Reverend Foster Archer's visit to Limerick and Clare, 1801 | Lysaght, Patrick B. | Article in Journal | | 1976 |
| The Royal Irish Artillery, 1755-1801 | Forde, Frank | Article in Journal | | 1973 |
| The Semples and St. Selskar's | Murphy, Elaine | Article in Journal | | 2005 |
| The Seven Other 'Youthful founders' of the Society | | Article in Book | | 2023 |
| The Siege of Londonderry | Wauchope, Piers | Monograph or Collective Volume | Four Courts Press | 2022 |
| The social geography of Cork city elections, 1801-1830 | Jupp, Peter, 1940-2006Royle, Stephen A. (Stephen Arthur) | Article in Journal | | 1994 |
| The soup kitchens | Donnelly, James S., Jr | Article in Book | | 1989 |
| The spirituality of John Henry Newman | Norris, Thomas | Article in Journal | | 2002 |
| The Stapleton collection : designs for the Irish neoclassical interior | Lucey, Conor | Monograph or Collective Volume | Churchill House Press [in association with the National Library of Ireland] | 2007 |
| The Stapletons of Drom, alias Font-Forte, Co. Tipperary | Ryan-Hackett, Rita C. | Monograph or Collective Volume | Thornvale | 1995 |
| The statutes at large passed in the parliaments held in Ireland ... 1310-1761 | | Monograph or Collective Volume | [s.n.] | 1801 |
| The Stone Circles of Cork and Kerry: With Analyses and Gazetteer | Meaden, Terence | Monograph or Collective Volume | New Generation Publishing | 2024 |
| The story of St Peter's Port, Athlone | O'Brien, Gearoid | Article in Journal | | 1996 |
| The story of the Dublin Institute of Technology | Duff, ThomasHegarty, JosephHussey, Matthew | Monograph or Collective Volume | Blackhall Publishing | 2000 |
| The strange story of Sarah Kelly | Hughes, Vera | Monograph or Collective Volume | The Newtown | 1988 |
| The travel diaries of Joshua Gilpin : some paper mills in Ireland, 1796 | | Article in Journal | | 1997 |
| The traveller's experience of famine Ireland | Fegan, Melissa | Article in Journal | | 2001 |
| The union : a concept in terminal decay? | Bew, Paul | Article in Book | | 2001 |
| The Union : a republican perspective | Morrison, Danny | Article in Book | | 2001 |
| The Union : essays on Ireland and the British connection | | Monograph or Collective Volume | Colourpoint | 2001 |
| The union : introduction | Boyce, David George, 1942-O'Day, Alan | Article in Book | | 2001 |
| The union and the importance of public opinion | Mansergh, Danny | Article in Book | | 2001 |
| The Union and the military, 1801-c.1830 | Blackstock, Allan | Article in Journal | | 2000 |
| The Union in a European context | Doyle, William, 1942- | Article in Journal | | 2000 |
| The union of Ireland and Britain, 1801-1921 | Johnson, David S.Kennedd, Liam | Article in Book | | 1996 |
| The union of Ireland and Britain, 1801-1921 | Kennedy, Liam, 1946- | Article in Book | | 1996 |
| The United Irishmen and Limerick | Donovan, Tom | Article in Journal | | 1998 |
| The Whig political connection between Great Britain and Ireland, 1784-1801 | Schweitzer, D. R. | Thesis | | |
| The wreck of the 'Demerary', Keeragh Islands, 1819 | Bourke, Edward J. | Article in Journal | | 2006 |
| The years in Ireland | McHugh, Roger Joseph | Article in Book | | 1945 |
| Theatre | Morash, Chris | Article in Book | | 2011 |
| Theft, concealment and exposure: Nathaniel Hone's 'The Spartan Boy' | Laffan, William | Article in Book | | 2016 |
| Thesis abstract : ‘The natural leaders’ : the Tennent family and the political and intellectual life of Presbyterian Belfast, c. 1801–1832 | Wright, Jonathan Jeffrey | Article in Journal | | 2010 |
| Thirty years work in Irish history, 3 : 19th century Ireland, 1801-1914 | Mulvey, Helen F. | Article in Journal | | 1970 |
| Thomas Butler, Earl of Ossory, 1634-80 : A Privileged Witness | Jordan, Daniel D. | Monograph or Collective Volume | Four Courts Press | 2022 |
| Thomas Conolly (1823-76) of Castletown House and the social networking of power | Pegley, Suzanne M. | Monograph or Collective Volume | Four Courts Press | 2022 |
| Those days are gone away | Cullen, Clara | Article in Journal | | 2016 |
| Thrown among strangers : John Henry Newman in Ireland | McRedmond, Louis | Monograph or Collective Volume | Veritas | 1990 |
| Time's Subjects : Horology and Literature in the Later Middle Ages and Renaissance | Scattergood, John | Monograph or Collective Volume | Four Courts Press | 2022 |
| Tipperary courtmartials - 1798-1801 | Power, Patrick C. | Article in Journal | | 1993 |
| Tipperary representation at Westminister, 1801-1918 | Comerford, R.V. (Richard Vincent) | Article in Book | | 1985 |
| To Shorten the Road | Gmelch, George (Essays and Biographies) | Monograph or Collective Volume | The O'Brien Press | 1978 |
| Transport and trade in Donegal and the north-west between the act of union and partition, 1801-1922 | Boyle, Edward Columba | Thesis | | 1988 |
| Two Lives of Saint Brigid | | Monograph or Collective Volume | Four Courts Press | 2023 |
| Two Ponsonby letters | Ireland, Aideen M. | Article in Journal | | 1993 |
| Ulster Protestants and the Union | McKay, Susan | Article in Book | | 2001 |
| Ulster society and politics, 1801-1921 | Walker, B. M. (Brian Mercer) | Article in Book | | 1989 |
| Union and display in nineteenth-century Ireland | Cullen, Fintan | Article in Book | | 2004 |
| Union government, 1812-1823 | Connolly, Sean J. | Article in Book | | 1989 |
| Unionism, Conservatism and the Anglo-Irish Agreement | Aughey, Arthur | Article in Book | | 2001 |
| University Church : towards a stylistic context | McCarthy, Michael (Michael Joseph), 1939-2010 | Article in Journal | | 2003 |
| Urban politics in Ireland 1801-31 | Jupp, Peter, 1940-2006 | Article in Book | | 1981 |
| Viceregal vignettes : Lords lieutenant of Ireland under William Pitt, the Younger, 1784-1801 | Schweitzer, D. R. | Article in Journal | | 1986 |
| Vida de Daniel Florencio O'Leary, primer Edecán del Libertador | Pérez Vila, Manuel | Monograph or Collective Volume | Imprenta Nacional | 1957 |
| Visitors to the Country House in Ireland and Britain: Welcome and unwelcome | | Monograph or Collective Volume | Four Courts Press | 2023 |
| Visual politics : the representation of Ireland, 1750-1930 | Cullen, Fintan | Monograph or Collective Volume | Cork University Press | 1997 |
| W.H. Welply's abstracts of Irish chancery bills 1601-1801 | Refaussé, RaymondSmith, Heather | Article in Journal | | 1987 |
| Waterford’s Maritime World : The Ledger of Walter Butler, 1750–1757 | Mannion, John | Monograph or Collective Volume | Four Courts Press | 2022 |
| Weary patriots : Ireland and the making of unionism | Boyce, David George, 1942- | Article in Book | | 2001 |
| What happened to Benjamin Alcock? - an exploration of Alcock's new life in America | Crowe, JulieHanna, Michael | Article in Journal | | 2020 |
| When the circus came to Athlone | O'Brien, Brendan | Article in Journal | | 1985 |
| White terror : counter-revolutionary violence in south Leinster 1798-1801 | Patterson, James G. | Article in Journal | | 2000 |
| Who shot Cushy Glen? | McAlister, Jacqueline | Article in Journal | | 2000 |
| Who was Terry Alt? | Mac Mahon, Michael | Article in Journal | | 2019 |
| Why do the British know so little about Irish history? | Bew, JohnBew, PaulClarke, GemmaMcBride, IanOhlmeyer, Jane | Article in Journal | | 2019 |
| Wicklow rebels of 1798. No. 7 - looters, liberators and informers : 1798-1803, parts 1-3 | O'Reilly, Stan J. | Article in Journal | | 2002 |
| William III at war : Scotland & Ireland 1681-1691 | Sapherson, C. Alan | Monograph or Collective Volume | Partizan Press | 1997 |
| William Sharman Crawford and Irish land legislation in parliament, 1835-52 | Gray, Peter | Article in Book | Four Courts Press | 2024 |
| William Tighe's statistical observations relative to the county of Kilkenny made in the years 1800 and 1801 | Tighe, William | Monograph or Collective Volume | Grangesilvia | 1998 |
| William Wickham, the Christ Church Connection and the Rise and Fall of the Security Service in Britain, 1793-1801 | Durey, Michael | Article in Journal | | 2006 |
| Wisdom, Moderation and Propaganda in the Act of Union Debate of 1801 | Levorato, Alessandra | Article in Book | | 2006 |
| Women and Jesuit ministry in Ireland, c.1600–c.1670 | Lyons, Mary Ann | Article in Book | | 2022 |
| Words in maps : Ireland seen by cartographers and writers from William Petty to Tim Robinson | Rossi, Massimo | Article in Book | | 2018 |
| Workers, politics and labour relations in Independent Ireland, 1922-46 | Hanley, Gerard | Monograph or Collective Volume | Four Courts Press | 2024 |
| Writing the union | Connolly, Claire | Article in Book | | 2001 |
| ‘A taste for building’: domestic space in elite female correspondence | Sonnier, Priscilla | Article in Book | | 2022 |
| ‘Baubles for boudoirs’ or ‘an article of such universal consumption’: ceramics in the Irish home, 1730–1840 | Barnard, T. C. (Toby Christopher) | Article in Book | NA | 2022 |
| ‘The best teachers in the world’: Jesuit schooling in Ireland, 1660–90 | Foerster, Martin | Article in Book | | 2022 |
| ‘Une maison de refuge’: the Irish Jesuit college in Poitiers, 1674–1762 | Chambers, Liam | Article in Book | | 2022 |