| "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 |
| "Always keep a lemon handy" : a skeletal history of lesbian activism in late twentieth century Ireland | Roberts, Hayley Fox | Article in Journal | | 2001 |
| "An indiscriminate blackness"? Massacre, counter-massacre, and ethnic cleansing in Ireland, 1640-1660 | Clifton, R. | Article in Journal | | 1999 |
| "Modelled muscularity" : Daniel Robertson's Tudor manors | O'Dwyer, Frederick | Article in Journal | | 1999 |
| "No remedy more proper" : Anglo-Irish unionism before 1707 | Smyth, Jim | Article in Book | Cambridge University Press | 1998 |
| "Repeal and the suffrage" : Feargus O'Connor's Irish "mission", 1849-50 | Pickering, Paul A. | Article in Book | Merlin | 1999 |
| "Who'll buy Killarney?" Social, legislative, and literary responses to the 1956 sale | Ulin, Julieann | Article in Journal | | 2019 |
| 'Ashford copys and rivals Roberts': new evidence for Thomas Roberts and William Ashford at Powerscourt | Sheppard, David | Article in Journal | | 2020 |
| 'In the service of the Honourable East India Company: politics and identity in Dean Mahomet's "Travels" (1794) | Roberts, Daniel Sanjiv | Article in Journal | | 2009 |
| 'It was grand to see our Tommies': reactions to the Easter Rising in the Monica Roberts Collection | Murphy, Ellen | Article in Journal | | 2016 |
| 'My dear men' : the Monica Roberts collection from the First World War | Kelly, Bernard | Article in Book | Dublin City Council | 2018 |
| 'Reds under the bed': Official attitudes to communism in Northern Ireland | Robertson, Alan W. | Article in Journal | | 2012 |
| 'Si quaeris monumentum, circumspice' William Robertson (1770-1850), Kilkenny's first architect | Lucey, John | Article in Journal | | 2018 |
| 'The mappe of commerce'. A 'tercentenary' tribute written in 1939 by the late Roland Lloyd, Ty'nygongl on the life and work of Captain Lewes Roberts (1596-1640) | Lloyd, Roland | Article in Journal | | 1954 |
| 'The only Irish magazine' : early Blackwoods and the production of Irish 'national character' | Roberts, Daniel S. | Article in Journal | | 2017 |
| A British patriarchy? : ecclesiastical imperialism under the early Stuarts | Morrill, John Stephen, 1946- | Article in Book | | 1994 |
| A century of schooling in Rathmullan | Bowden, Mary | Monograph or Collective Volume | Rathmullan and District Local History Society | 2002 |
| A chronicle of Irish emigration to Saint John, New Brunswick, 1847 | Casey, TeresaCushing, J. ElizabethRobertson, Monica | Monograph or Collective Volume | New Brunswick Museum | 1979 |
| A history of the ship letters of the British Isles | Robertson, Alan | Monograph or Collective Volume | Privately pubd. | 1955 |
| A long time in the making: The Pier at Gyles Quay, County Louth | Shotton, Elizabeth | Article in Journal | | 2023 |
| A long way from Tipperary | Robertson, June O'Carroll | Monograph or Collective Volume | Images | 1994 |
| A Meath officer's tomb at the church of Saint Gertrude in Tenneville | Robertson, StephanieÓ hAnnracháin, Eoghan | Article in Journal | | 2019 |
| A missing aircraft | Roberts, Frank | Article in Journal | | 1985 |
| A new Ireland : politics, peace and reconciliation | Hume, JohnMcEnery, Tom | Monograph or Collective Volume | Roberts Rinehart | 1996 |
| A notable Devon knight : Sir William Courtenay, 1553-1630 | Roberts, John | Article in Journal | | 1956 |
| A plane crash in Glendun | Roberts, Deirdre | Article in Journal | | 2014 |
| A Suggested Function for the Holy Well? | Whitfield, Niamh | Article in Book | | 2007 |
| An edition, with introduction and notes, of the register of Archbishop Mey; and a calendar of the register of Archbishop Prene | Quigley, W.G.H.Roberts, E.F.D. | Thesis | | 1955 |
| An example to the whole world': patriotism and imperialism in early Irish fiction | Roberts, Daniel Sanjiv | Article in Book | Cambridge University Press | 2020 |
| An Irish century, 1845-1945 : from the Famine to the end of World War II | Small, Stephen | Monograph or Collective Volume | Roberts Books | 1998 |
| Ancient, sacred, and historic sites of west Cork : map and guide showing a selection of monuments in the area | Roberts, Jack | Monograph or Collective Volume | Key Books | 1987 |
| Antiquities and scenery of the county of Kilkenny | Robertson, James George | Monograph or Collective Volume | Boethius Press | 1983 |
| Antrim Murrays and the cattle trade with Kintyre | Roberts, Alasdair | Article in Journal | | 1997 |
| Archaeological excavations of medieval, post-medieval and modern burials at Ennis Friary, Co. Clare | Halliday, StuartO'Sullivan, JerryRoberts, Julie | Article in Journal | | 2003 |
| Bis per chorum hint et inde : The "Virgin and Child with Angels" in the Book of Kells | Farr, Carol Ann | Article in Book | | 2007 |
| Bunratty Folk Park and its potential as an education centre | Noonan, J. A.Roberts, M. J. | Article in Journal | | 1978 |
| Cain’s Burden: Trocchi and Beckett in Paris | Shanks, Paul | Article in Journal | | 2008 |
| Calendar of the manuscripts of the most hon. the marquis of Salisbury ... preserved at Hatfield House, Hertfordshire | | Monograph or Collective Volume | | 1883 |
| Captain Roberts of the Sirius : engine power across the Atlantic | Pochin-Mould, Daphne | Monograph or Collective Volume | Sirius Commemoration Committee | 1988 |
| Caravats and Shanavests : Whiteboyism and faction fighting in East Munster, 1802-11 | Roberts, P. E. W. | Article in Book | | 1983 |
| Censorship as propaganda : the neutralisation of Irish public opinion during the Second World War | Ó Drisceoil, Donal | Article in Book | | 2000 |
| Charles Wesley's 'Right to preach throughout England and Ireland' | Roberts, G. T. | Article in Journal | | 1937 |
| Chaucer and Wordsworth's Vivid Daisies | Robertson, Elizabeth | Article in Book | | 2017 |
| Chernobyl : the response in Northern Ireland | Robertson, Alan W. | Article in Journal | | 2016 |
| Classicism and civility | Walton, Julian | Article in Journal | | 2004 |
| Collected works of Padraic H. Pearse | Pearse, Patrick Henry, 1879-1916 | Monograph or Collective Volume | Maunsel and Roberts | 1922 |
| Colonel W. Robertson's 'plans for the defence of the Irish coasts and foreign invasion and to prepare for security, taken occasionally in 1796, '97 & '98 | O'Connell, J. W. | Article in Journal | | 1998 |
| Comparative philology and mythology : the letters of Whitley Stokes to Adalbert Kuhn | Maier, Bernhard | Article in Book | | 2011 |
| Consumerism and the co-operative movement in modern British history | | Monograph or Collective Volume | Manchester University Press | 2009 |
| Controversies in the history of British feminism, 1. The educators : female education; 2. The opponents : the anti-suffragists; 3. The rebels : Irish feminists; 4. The suffragists : towards the vote; 5. The workers : women and labour; 6. The militant : Christabel Pankhurst | | Monograph or Collective Volume | Routledge/Thommes Press and Kinokuniya Co. | 1995 |
| Crossing the Shannon | Flanagan, Patrick | Article in Journal | | 1973 |
| Crowned harp : memories of the last years of the crown in Ireland | Robertson, Nora | Monograph or Collective Volume | Allen Figgis | 1960 |
| Cyril Ehrlich : before The piano | Elkan, WalterRoberts, Andrew Dunlop | Article in Book | | 2000 |
| Daily life in the Ballycastle workhouse | Roberts, Deirdre | Article in Journal | | 2010 |
| Daniel O'Connell, Repeal, and Chartism in the age of Atlantic revolutions | Roberts, Matthew | Article in Journal | | 2018 |
| Daniel O’Connell, repeal, and Chartism in the age of Atlantic revolutions | Roberts, Matthew | Article in Journal | | 2018 |
| Deeds not words : Irish soldiers, sailors and airmen in two world wars | Robertson, David | Monograph or Collective Volume | [The author] | 1998 |
| Descendants of Dennis Mero of Falmouth, Maine, Dorchester, Mass., and Norwich, Conn. | Robertson, David T. | Article in Journal | | 1995 |
| Documents. Newly recovered articles from "The Calcutta Gazette" by Charles Johnstone | Roberts, Daniel Sanjiv | Article in Journal | | 2011 |
| Dr Mannix | Brennan, Niall | Monograph or Collective Volume | Angus & Robertson | 1965 |
| Dr. Campbell's diary of a visit to England in 1775. With an introduction by C. S. Roberts | | Monograph or Collective Volume | | 1947 |
| Dublin in Bloomtime : the city James Joyce knew | Pearl, Cyril | Monograph or Collective Volume | Angus & Robertson | 1969 |
| Dublin-made rifle's good shooting | Roberts, N. | Article in Journal | | 1948 |
| Éamonn Ó Carragáin : A bibliography | Ó Carragáin, Tomás | Article in Book | | 2007 |
| Earnest men: two Victorian contemporaries | Roberts, Gerald | Article in Journal | | 2013 |
| Edward Lhwyd (c.1660-1709) : Folklorist | Roberts, Brynley F. | Article in Journal | | 2009 |
| Edward Lhwyd 1660-1709: Llyfryddiaeth a chyfarwyddiadur; a bibliography and reader's guide | | Monograph or Collective Volume | University of Wales Centre for Welsh and Celtic Studies | 2009 |
| Emerging from the bushes : the Welsh law of women in the legal triads | Roberts, Sara Elin | Article in Book | | 2008 |
| Empire and union : two concepts of early modern European political order | Robertson, John, 1951- | Article in Book | | 1995 |
| Essays presented to Michael Roberts, sometime professor of modern history in the Queen's University of Belfast | | Monograph or Collective Volume | Blackstaff Press | 1976 |
| Evidence for leprosy in Medieval Ireland | Manchester, KeithMurphy, Eileen | Article in Book | | 2002 |
| Excitative speech : theories of emotive response from Richard Fitzralph to Margery Kempe | Somerset, Fiona | Article in Book | | 2002 |
| Exploring west Cork : a guide to discovering the ancient, sacred and historic sites of west Cork | Roberts, Jack | Monograph or Collective Volume | Key Books | 1988 |
| Extending the frontiers : scholar collectors | Roberts, Julian | Article in Book | | 2006 |
| Faith, culture and sovereignty : Irish nationality and its development, 1558-1625 | Caball, Marc | Article in Book | | 1998 |
| Feargus O'Connor in the House of Commons, 1847-1852 | Roberts, Stephen | Article in Book | | 1999 |
| Fire on the altar : a history and evaluation of the 1904-05 revival in Wales | Gibbard, Noel | Monograph or Collective Volume | Bryntirion | 2005 |
| Flight to Lahinch | Roberts, Francis | Article in Journal | | 1984 |
| Foreign affairs bibliography : a selected and annotated list of books on international relations, 1942-1952 | Roberts, Henry L. | Monograph or Collective Volume | Harrap | 1955 |
| Foyle college : the Maynooth/Dunboyne connection | Ferguson, W. S.Roberts, Alan | Article in Journal | | 1988 |
| Foyle College : the Maynooth/Dunboyne connection | Ferguson, W. S.Roberts, Alan | Article in Journal | | 1990 |
| Francis Robertson (1737/38 - 1791) founder of the Robertson Schools | MacArthur, C. W. P. | Article in Journal | | 1999 |
| Gendered Womb-Healing: Malevolent Magic and Spiritual Medicine in the Early Medieval Lives of St Brigit | Roberts, Arica S. | Article in Journal | | 2020 |
| George Farquhar: a migrant life reversed | Roberts, David, 1960- | Monograph or Collective Volume | Methuen Drama | 2018 |
| George Francis Fitzgerald, 1851-1901 | O'Connor, J. J.Robertson, Edmund F. | Article in Book | | 2003 |
| Gladstone and the Irish question | Roberts, Matthew, 1978- | Article in Journal | | 2000 |
| Glendalough House, Annamoe, Co. Wicklow | Davies, Mary | Article in Journal | | 2016 |
| Glimpse of an Irish felon's prison life | Clarke, ThomasO'Hegarty, P. S. | Monograph or Collective Volume | Mansell and Roberts | 1922 |
| Gravestone Inscriptions of Co. Cork XIX: Tracton Burial Ground | Henchion, Richard | Article in Journal | | 2015 |
| H. Neville Roberts : poet, artist, controversialist | Lysaght, Moira | Article in Journal | | 1979 |
| Highlanders, Irishmen, and the Land Question in Nineteenth Century Prince Edward Island | Robertson, Ian Ross | Article in Book | | 1977 |
| Highlanders, Irishmen, and the Land Question in Nineteenth Century Prince Edward Island | Robertson, Ian Ross | Article in Book | | 1977 |
| Historical Manuscripts Commission. Manuscripts of the earl of Egmont. Diary of Viscount Percival, afterwards first earl of Egmont. 3 vols | | Monograph or Collective Volume | | 1920 |
| Historical studies, II | | Monograph or Collective Volume | Bowes & Bowes | 1959 |
| History in Books' Clothing : Books as Evidence for Cultural Relations between England and the Continent in the Seventh and Eighth Centuries | Parkes, Malcolm Beckwith | Article in Book | | 2007 |
| History of the Ely O'Carroll | Gleeson, John | Monograph or Collective Volume | Roberts Books | 1982 |
| History of the Queen's county | O'Hanlon, JohnPhelan, Edwin | Monograph or Collective Volume | Roberts Books | 1981 |
| Hogan and the challenge of world communism | Roberts, Geoffrey | Article in Book | | 2001 |
| Hoosier, Yankee, and Yoho : some comments on family names in Indiana | Roberts, Warren | Article in Journal | | 1981 |
| Hopkins and the condition of England | Roberts, Gerald | Article in Book | | 1988 |
| Horestes | Pickeryng, John | Monograph or Collective Volume | Galway University Press | 1996 |
| Huntington Castle gardens ... a history going back to monastic times, with ancient garden features... | Davies, Mary | Article in Journal | | 2011 |
| I am of Ireland : an American's journey of discovery in a troubled land | Brown, Richard Howard | Monograph or Collective Volume | Roberts Rinehart | 1995 |
| Ideology, strategy and party change : spatial analysis of post-war election programmes in 19 democracies | | Monograph or Collective Volume | Cambridge University Press | 1987 |
| Ireland and the Second World War : politics, society and remembrance | | Monograph or Collective Volume | Four Courts | 2000 |
| Ireland in America | Bowers, Claude G.Roberts, Edward | Monograph or Collective Volume | Putnam | 1931 |
| Ireland without Union : Molyneux and his legacy | Hill, Jacqueline R. | Article in Book | | 1995 |
| Ireland, 1948-1981 : issues, parties, strategies | Mair, Peter | Article in Book | | 1987 |
| Irish Americans and the Anglo-Irish treaty of 1921 | Hopkinson, M. H. | Article in Book | | 1976 |
| Irish family histories | Grehan, Ida | Monograph or Collective Volume | Roberts Rinehart | 1993 |
| Irish heroes of the Second World War | Doherty, Richard | Article in Book | | 2000 |
| Irish history and Irish character | Smith, Goldwin | Monograph or Collective Volume | | 1861 |
| Irish hunger : personal reflections on the legacy of the famine | Hayden, TomHeaney, Seamus | Monograph or Collective Volume | Wolfhound and Roberts Rhinehart | 1997 |
| Irish indiscretions | Wells, Warre B. | Monograph or Collective Volume | Maunsel and Roberts | 1923 |
| Irish neutrality in historical perspective | Murphy, John A. | Article in Book | | 2000 |
| Irish railwaymen and the retail Co-operative movement, 1917-23 | McCabe, Conor | Article in Book | | 2009 |
| Irish workers in Britain during World War Two | Connolly, Tracey | Article in Book | | 2000 |
| Irving/Irwin | Roberts, May McBriar | Article in Journal | | 1987 |
| James Ussher and the creation of an Irish protestant identity | Ford, Alan, 1956- | Article in Book | | 1998 |
| John Francis Campbell, William Robertson and the collection of fianaigheachd tales and ballads in nineteenth-century Scotland | Gunderloch, Anja | Article in Book | | 2022 |
| John in Ireland, 1185 | Warren, Wilfred Lewis, 1929- | Article in Book | | 1976 |
| John McKinnon Robertson : a forgotten voice of reason | McAteer, Michael | Article in Journal | | 2001 |
| KIlkenny's first Mental Health Facility | Lucey, John | Article in Journal | | 2021 |
| Land, people and identity : popular protest in the Scottish Highlands after 1918 | Robertson, Iain | Article in Book | | 2005 |
| Lazamon's presentation of Ireland and the Irish | Pilch, Herbert | Article in Book | | 2002 |
| Letters to Stillorgan from the Western Front | MacMahon, Bryan, 1949- | Article in Journal | | 2007 |
| Letters to Stillorgan from the Western Front | MacMahon, Bryan, 1949- | Article in Journal | | 2008 |
| Letters written by Arthur Capel, earl of Essex, lord lieutenant of Ireland, 1675 | Anonymous | Monograph or Collective Volume | printed for J. Dodsley; Wilson and Nicol; T. Cadell; Robinson and Roberts | 1770 |
| Lisnavagh House, Rathvilly, Co. Carlow | Bunbury, Turtle | Article in Journal | | 2020 |
| Love's civil war : Elizabeth Bowen and Charles Ritchie : letters and diaries 1941-1973 | | Monograph or Collective Volume | Simon & Schuster | 2009 |
| Loyalist former prisoners and community development : in discussion with Tom Roberts | Spencer, Graham | Article in Book | | 2011 |
| MacCartney in Russia | Roberts, Michael, 1908- | Article in Journal | | 1974 |
| Manning Robertson, Dublin, and the early years of Town Planning in Dublin | Cregan, Michael | Article in Journal | | 2015 |
| Martin Cash : the last of the Tasmanian bush-rangers | Clune, Frank | Monograph or Collective Volume | Angus & Robertson | 1956 |
| Medium rare : the biography of Liam Scott | Roberts, BillyScott, Liam, 1935- | Monograph or Collective Volume | Apex Publishing | 2009 |
| Merlin, Stonehenge, and the Hill of Uisneach, Ireland | Breeze, Andrew | Article in Book | | 2002 |
| MI5's Irish memories : fresh light on the origins and rationale of Anglo-Irish security liaison in the Second World War | O'Halpin, Eunan | Article in Book | | 2000 |
| Migrating Into the Mainstream of Welsh History : The Irish and Others in Modern Wales | Roberts, Owen G. | Article in Journal | | 2004 |
| Missing in action | Ó Ruairc, Pádraig Óg | Article in Journal | | 2012 |
| Missing in action - British servicemen secretly buried in Clare during the War of Independence | Ó Ruairc, Padraig Óg | Article in Journal | | 2012 |
| Monica Roberts' diary of Easter Week, 1916 | MacMahon, Bryan, 1949-Roberts, Monica, 1889-1975 | Article in Journal | | 2008 |
| Moore's Oriental Artifice: Mughal history, Irish antiquarianism and romance in Lalla Rookh | Roberts, Daniel Sanjiv | Article in Book | | 2018 |
| More letters to Stillorgan from the Great War | MacMahon, Bryan, 1949- | Article in Journal | | 2009 |
| Mr Robertson of Ratisbon | G., A. M. | Article in Journal | | 1942 |
| Mrs Delany and her circle | | Monograph or Collective Volume | Yale University Press | 2009 |
| Napoleon's Marshal in County Antrim, July 1825 | Roberts, Alasdair | Article in Journal | | 2011 |
| Neolithic tool manufacture on the Antrim coast: excavations at West Division, Greenisland | Lochrie, JulieRobertson, AlistairTimpany, Scott | Article in Journal | | 2010 |
| Neutrality and the volunteers : Irish and British government policy towards the Irish volunteers | Kavanagh, Cormac | Article in Book | | 2000 |
| Neutrality, identity and the challenge of the Irish Volunteers | Roberts, Geoffrey | Article in Book | | 2004 |
| Nevertheless, they persisted. feminist activism and the politics of crisis in Northern Ireland | Deiana, Maria-Adriana ; Hagen, Jamie J ; Roberts, Danielle | Article in Journal | | 2022 |
| 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 |
| No one wants you : a true story of a child forced into prostitution | Roberts, Celine, 1948- | Monograph or Collective Volume | Ebury | 2008 |
| Northern Ireland 1921-1973 : party manifestos and platforms | Elliott, SydneyLaver, Michael | Article in Book | | 1987 |
| Northern Ireland : the impact of war, 1939-45 | Barton, Brian, 1944- | Article in Book | | 2000 |
| Obituaries. Ronnie Roberts | Anonymous | Article in Journal | | 2016 |
| Of ships and trade and Trodheim : a Norwegian connection | Ferguson, W. S.Roberts, Alan | Article in Journal | | 1987 |
| Oliver Pollock : forgotten financier of the American revolution | Roberts, Russell | Article in Journal | | 2005 |
| On the present condition of agriculture in the counties of Cork and Kerry, February 1867-, 1 report by W. R. Robertson | McClintock, AileenRobertson, W. R. | Article in Journal | | 2007 |
| Peel | Kitson Clark, George Sidney Roberts, 1900-1975 | Monograph or Collective Volume | | 1936 |
| Politics in wartime : governing, neutrality and elections | Girvin, Brian | Article in Book | | 2000 |
| Portobello Hotel | Delaney, Ruth | Article in Journal | | 1974 |
| Printing Carton : the 2nd Duke of Leinster, Thomas Roberts and William Ashford | Laffan, WilliamRooney, Brendan | Article in Book | | 2014 |
| Rail, road and canal | McIntyre, Cyril | Article in Journal | | 1973 |
| Registrum Iohannis Mey : the register of John Mey, archbishop of Armagh, 1443-56 | | Monograph or Collective Volume | HMSO | 1972 |
| Retreat from Kintyre to the Glens : the evidence of family names | Roberts, Alasdair | Article in Journal | | 1990 |
| Rev. Richard Dell, M.A., (c.1804-1858) and Magee College | Roberts, Alan | Article in Journal | | 1993 |
| Rev. William Roibertson D.D., Rector of Rathvilly | Kavanagh, Myra D. | Article in Journal | | 2020 |
| Robert Boyd of Ballymacool | Ferguson, W. S.Roberts, Alan | Article in Journal | | 1990 |
| Robert McElheran (1852-1910). From Glendun to Greenpoint, Brooklyn | Roberts, Deirdre | Article in Journal | | 2005 |
| Robertstown, Co. Meath, effigial grave slab : an historical footnote | Ní Shúilliobháin, Nóra | Article in Book | | 1987 |
| Royalists at war in Scotland and Ireland, 1638-1650 | Robertson, Barry | Monograph or Collective Volume | Ashgate | 2014 |
| Rural settlement in medieval Ireland : the example of the royal manors of Newcastle Lyons and Esker in south County Dublin | Simms, Anngret | Article in Book | | 1983 |
| Sacred Cities? | Ryan, Michael | Article in Book | | 2007 |
| Select statutes, cases and documents to illustrate English constitutional history, 1660-1832. With additional matter on Irish and Canadian documents (1840-1931). New issue, containing additional matter. | | Monograph or Collective Volume | | 1935 |
| Sensibility and the sublime in the storm paintings of Thomas Roberts (1748-1777) | Dunne, Tom, 1939- | Article in Journal | | 2009 |
| Some little known Irish inventors | Delany, Ruth | Article in Journal | | 1980 |
| St John's Church, John Street, Kilkenny | Murphy, Damian | Article in Journal | | 2022 |
| St Malachy's Court | Robertson, Olivia | Monograph or Collective Volume | Peter Davies | 1946 |
| Testimony | Adaser, RosemaryBryan, ConradHarney, MaryHarrison, TerriLohan, SusanPalmer, CaitríonaRoberts, ConnieSteed, Mari | Article in Book | | 2022 |
| Text, image, interpretation : studies in Anglo-Saxon literature and its Insular context in honour of Éamonn Ó Carragáin | | Monograph or Collective Volume | Brepols | 2002 |
| The 'Irishes' in Scotland, 1644-7 | Roberts, Alasdair | Article in Journal | | 1984 |
| The aims and achievements of Lord Grenville | Jupp, Peter, 1940-2006 | Article in Book | | 1976 |
| The army and civil war | Roberts, Frederick | Article in Journal | | 1914 |
| The Barberini Gospels : Context and Intertextual Relationships | Brown, Michelle P. | Article in Book | | 2007 |
| The barony of Shanid : a short history of Shanegolden, Foynes and Robertstown | Culhane, Thomas Joseph | Monograph or Collective Volume | Mount Pleasant Publications | 2003 |
| The British offer to end partition, June 1940 | Roberts, Geoffrey | Article in Journal | | 2001 |
| The British problem in three tracts on Ireland by Spenser, Bacon and Milton | Maley, Willy | Article in Book | | 1998 |
| The Cailleach of Sligo | Roberts, Michael | Article in Journal | | 2016 |
| The Cambridge modern history, 5 : The age of Louis XIV | | Monograph or Collective Volume | | 1908 |
| The Celtic languages of Britain | Roberts, Brynley F. | Article in Book | | 1997 |
| The ceremony at Tenneville on 8 September 2019 commemorating Matthias Barnewall, Lord Trimleston|Appendix. Margery Barnewall and the dogs of Saint-Malo | Robertson, StephanieÓ hAnnracháin, Eoghan | Article in Journal | | 2020 |
| The Chicago revival, 1876 : society and revivalism in a nineteenth century city | Robertson, Darrel M. | Monograph or Collective Volume | Scarecrow | 1989 |
| The confederation of Kilkenny reviewed | Beckett, J. C. (James Camlin) | Article in Book | | 1959 |
| The cots of Rosslare Harbour and of Wexford | Roberts, Owain T. P. | Article in Journal | | 1985 |
| The Cound of Frights of the Margerd Davies | Roberts, Owain T. P. | Article in Journal | | 1999 |
| The dictionary of Irish family names | Grehan, Ida | Monograph or Collective Volume | Roberts Rinehart | 1997 |
| The earlier Butler brides: origins and kinship revisited | Roberts, John Cantwell | Article in Journal | | 2007 |
| The early days of Rotary in Mallow | Roberts, Ronnie | Article in Journal | | 2009 |
| The ecclesiastical significance of the St Ninian's Isle treasure | McRoberts, D. | Article in Book | | 1965 |
| The economic ideas of Parnell | Lyons, F. S. L. (Francis Stewart Leland) | Article in Book | | 1959 |
| The English reformation and identity formation in Ireland and Wales | Bradshaw, Brendan | Article in Book | | 1998 |
| The forgotten volunteers of World War II | Girvin, BrianRoberts, Geoffrey | Article in Journal | | 1998 |
| The Greek bishop of Dromore | McRoberts, David | Article in Journal | | 1977 |
| The Hill of Allen | Walker, E. K. | Article in Journal | | 1974 |
| The history of Clonmel | Burke, William P. | Monograph or Collective Volume | Roberts | 1983 |
| The idea of a university revisited | Roberts, J. M. | Article in Book | | 1990 |
| The immigrant alternative : ethnic and sectarian mutuality among the Liverpool Irish during the nineteenth century | Belchem, John | Article in Book | | 1995 |
| The Iorwerth triads | Roberts, Sara Elin | Article in Book | | 2011 |
| The Irish American worker in transition 1877-1914 : New York city as a test case | McKivigan, John R.Robertson, Thomas J. | Article in Book | | 1996 |
| The Irish armed forces, 1660-1685 | Beckett, J. C. (James Camlin) | Article in Book | | 1976 |
| The Irish at Eureka | Curry, C. H. | Monograph or Collective Volume | Angus & Robertson | 1954 |
| The Irish revolution and how it came about | O'Brien, William | Monograph or Collective Volume | Maunsel and Roberts | 1923 |
| The Leprosy Asylum in India : 1886-1947 | Robertson, Jo | Article in Journal | | 2009 |
| The life and ministry of Edward Cooney | Roberts, Patricia | Monograph or Collective Volume | P. Roberts | 1990 |
| The limits of Brown's landscape : translations of the landscape garden into Ireland | O'Kane, Finola | Article in Journal | | 2016 |
| The limits of popular radicalism : British communism and the people's war, 1941-45 | Roberts, Geoffrey | Article in Journal | | 1997 |
| The Miller/Robertson collection | Manning, Conleth | Article in Journal | | 2017 |
| The Monica Roberts collection of letters from the Western Front, 1914-1918 | MacMahon, Bryan, 1949- | Article in Journal | | 2008 |
| The Mysterious Moment of Resurrection in Early Anglo-Saxon and Irish Iconography | Fadda, Anna Maria Luiselli | Article in Book | | 2007 |
| The Navan forty metre structure : some observations regarding the social context of an iron age monument | Robertson, David | Article in Journal | | 1992 |
| The new Irish Americans | O'Hanlon, Ray | Monograph or Collective Volume | Roberts Rinehart | 1998 |
| The old waterworks, Dyke Road | Burke, Redmond | Article in Journal | | 2012 |
| The oral history of the volunteers | McElwaine, Aidan | Article in Book | | 2000 |
| The Orange movement in Ireland, 1886 to 1916 : a study in the sociology of religion and politics | Roberts, David Anthony | Thesis | | |
| The Orange Order in Ireland : a religious institution? | Roberts, D. A. | Article in Journal | | 1971 |
| The Port of Cushendun : trade and smuggling to and from Kintyre | Roberts, Deirdre | Article in Journal | | 2007 |
| The postage stamps of Ireland | Robertson, W. D. | Article in Journal | | 1942 |
| The Representation of the Apostles in Insular Art, with Special Reference to the New Apostles Frieze at Tarbat, Ross-shire | Henderson, George | Article in Book | | 2007 |
| The Rising generation and the memory of 1798 | Roberts, Heather L. | Article in Book | | 2016 |
| The Robertsons, the Sutherlands, and the making of Texas | Sutherland, Anne H. | Monograph or Collective Volume | Texas A & M University Press | 2006 |
| The romantic element - 1830 to 1850 | Kitson Clark, George Sidney Roberts, 1900-1975 | Article in Book | | 1955 |
| The sheela-na-gigs of Britain & Ireland : an illustrated guide | Roberts, Jack | Monograph or Collective Volume | Key Books | 1995 |
| The Sheela-na-gigs of Ireland and Britain : an illustrated guide | McMahon, JoanneRoberts, Jack | Monograph or Collective Volume | Mercier Press | 2001 |
| The story of the People's College | Roberts, Ruaidhri | Monograph or Collective Volume | [s.n.] | 1986 |
| The Third Voyage of Cormac in Adomnan's Vita Columbae : Analogues and Context | Scully, Diarmuid | Article in Book | | 2007 |
| Thomas Roberts : landscape and patronage in eighteenth-century Ireland | Laffan, William,Rooney, Brendan | Monograph or Collective Volume | Churchill House Press for the National Gallery of Ireland | 2009 |
| Thomas Roberts et in Arcadia ego | Walton, Julian | Article in Journal | | 2009 |
| Thomas Roberts, 1748-1778 | Wynne, Michael | Article in Journal | | 1994 |
| Thomas Roberts, 1748-78 | Wynne, Michael | Article in Journal | | 1977 |
| Three narratives of neutrality : historians and Ireland's war | Roberts, Geoffrey | Article in Book | | 2000 |
| Trevelyan's rhinoceros and other gift from India to Dublin Zoo | de Courcy, Catherine | Article in Journal | | 2010 |
| Tullamore Hotel | Delaney, Ruth | Article in Journal | | 1973 |
| Two new works by Thomas Roberts (1748-1777) | Laffan, WilliamRooney, Brendan | Article in Journal | | 2012 |
| Two Robertson houses at John's Quay, Kilkenny | Brady, Margaret | Article in Journal | | 2000 |
| Villages, fields and frontiers | | Monograph or Collective Volume | BAR | 1983 |
| What a bishop of the Church of Ireland can do. An exposure of a scandal | Westropp, C. Roberts, Rev. | Monograph or Collective Volume | Hillhouse | 1909 |
| Whitfield Court, Co. Waterford: challenges and threats to an historic house | Breen, Mary | Article in Journal | | 2019 |
| William Rowan Hamilton, 1805-1865 | O'Connor, KevinRobertson, Edmund F. | Article in Book | | 2003 |
| ‘Two hands over two sands’ : Capel Bethel, Dulyn : the Welsh chapel in Dublin | Roberts, Dafydd | Article in Journal | | 2018 |
| ’An account obtained from authentic documents’: Jane Williams (Ysgafell) as a historian | Roberts, Gwyneth Tyson | Article in Book | | 2013 |