| 1880 : a distressful year in Connemara | Jennings, Catherine | Article in Journal | | 1993 |
| A chapel of ease : St. Matthew's Newtownmountkennedy, 150th anniversary, 1836-1986 : commemorative booklet | Jennings, Robert | Monograph or Collective Volume | [The author] | 1986 |
| A man from Barnaderg (the story of Rickard Jennings) | Doyle, Maureen | Article in Journal | | 1993 |
| A pint to remember : the pub as community militarism | Partis-Jennings, Hannah | Article in Journal | | 2022 |
| A propaganda Fide letter-book concerning Ireland, 1672-4 | | Article in Journal | | 1955 |
| A Return to Trial by Jury | Greer, StevenWhite, Anthony | Article in Book | | 1988 |
| A translation of the Tochmarc Treblainne | Jennings, Rachel | Article in Journal | | 1997 |
| A troubled landscape: the ejectment books of County Clare | Jennings, Nicola
| Article in Journal | | 2012 |
| Acta Sacrae Congregationis de Propaganda Fide, 1622-50 | | Article in Journal | | 1959 |
| Acta santorum veteris et majoris Scoticae seu Hiberniae sanctorum insulae. Tomus primus ... Januarium, Februarium et Martium complectens | Colgan, John | Monograph or Collective Volume | The Stationery Office | 1948 |
| An appeal of the Ulster Franciscans against Blessed Oliver Plunket | Jennings, Brendan | Article in Journal | | 1956 |
| An Economistic Interpretation of the Northern Ireland Conflict | Jennings, Colin C. | Article in Journal | | 1997 |
| An end to terrorism | Jennings, Peter | Monograph or Collective Volume | Lion | 1984 |
| Arrest and Interrogation | Walsh, Dermot P.J. | Article in Book | | 1988 |
| Belfast | Hill, ChrisJennings, Jill | Monograph or Collective Volume | Blackstaff Press | 1994 |
| Brevis synopsis provinciae Hiberniae fratrum minorum | Matthews, Francis
| Article in Journal | | 1934 |
| Brevis synopsis provinciae Hiberniae fratrum minorum | Jennings, BrendanMathews, F. | Article in Journal | | 1934 |
| Brussels MS.3947. De provincia Hiberniae S. Francisci | | Article in Journal | | 1934 |
| Bullets above the law | Jennings, Anthony | Article in Book | | 1988 |
| Calary church and parish : diocese of Glendalough : 175th anniversary, 1834-2009 | Jennings, Robert | Monograph or Collective Volume | Calary Parish | 2009 |
| Children of the troubles : growing up in Northern Ireland | Durran, MaggieJennings, Peter | Monograph or Collective Volume | Marshall Pickering | 1986 |
| Constitutional Laws of the Commonwealth, 1 : The Monarchies | Jennings, William Ivor, Sir | Monograph or Collective Volume | | 1938 |
| Dan Bride's memoirs of William Jennings Bryan | Cherny, R. W. | Article in Journal | | 1985 |
| Documents of the Irish colleges at Douai | | Article in Journal | | 1943 |
| Documents of the Irish Franciscan college at Prague | Jennings, Brendan | Article in Journal | | 1942 |
| Duanaire Finn : the Book of the Lays of Fionn | | Monograph or Collective Volume | Irish Texts Society | 1954 |
| Early Irish watermills and their continental affinities | Rynne, Colin | Article in Book | | 1992 |
| Ecclesiastical appointments in Ireland, Aug. 1643 - Dec. 1649 | Jennings, Brendan | Article in Journal | | 1959 |
| Emergency Law in Northern Ireland: The Context | Boyle, KevinCampbell, ColmHadden, Tom | Article in Book | | 1988 |
| Eoin O'Mahoney (also known as "The Pope"). Barrister, genealogist and renaissance man | Jennings, H. Stanley | Article in Journal | | 2012 |
| Fanny Jennings, duchess of Tyrconnell | Ó Broin, León, 1902-1990 | Article in Journal | | 1962 |
| Florence Conry, archbishop of Tuam | Jennings, Brendan | Article in Journal | | 1949 |
| Francis and Patrick Porter of Kingstowne, Co. Meath | Jennings, Brendan | Article in Journal | | 1951 |
| Gladstone and Ireland : the perils of the intellectual | Jennings, Marie-Louise | Article in Book | | 2016 |
| Glimpses of an ancient parish, Newcastle, Co. Wicklow 1189-1989 | Jennings, Robert | Monograph or Collective Volume | [The author] | 1989 |
| If these stones could speak... | Jennings, Fergal | Article in Journal | | 2019 |
| Ireland and Propaganda Fide, 1672-6 | | Article in Journal | | 1956 |
| Irish casualties at Cassano | Jennings, Brendan | Article in Journal | | 1945 |
| Irish names in the Malines ordination registers, 1602-1794 | Jennings, Brendan | Article in Journal | | 1952 |
| Irish preachers and confessors in the archdiocese of Malines, 1607-1794 | | Article in Journal | | 1960 |
| Irish students in the University of Louvain | Jennings, Brendan | Article in Book | | 1944 |
| Irish swordsmen in Flanders, 1586-1610. 1, Stanley's regiment, 1586-1587; 2, Independent Irish companies and the regiment of Henry O'Neill. | Jennings, Brendan | Article in Journal | | 1948 |
| Journal of Samuel Hayes, June - July 1769 | Hayes, SamuelJennings, Nicola | Article in Journal | | 2004 |
| Justice under fire : the abuse of civil liberties in Northern Ireland | | Monograph or Collective Volume | Pluto | 1988 |
| Kilcoole, county Wicklow : history and folklore, historical walks and drives | Jennings, Robert | Monograph or Collective Volume | Kilcoole Millennium and Residents' Association | 1998 |
| Letter from Parishioners to Rev'd John Darby | Jennings, Robert | Article in Journal | | 2004 |
| Little Jennings and fighting Dick Talbot : a life of the duke and duchess of Tyrconnel. 2 vols. | Sergeant, P. W. | Monograph or Collective Volume | | 1913 |
| Louvain papers, 1606-1827 | | Monograph or Collective Volume | Stationery Office for the Irish Manuscripts Commission | 1968 |
| Melchior de Burgo : a Connaught soldier of fortune in the Low Countries in the seventeenth century | Jennings, Brendan | Article in Journal | | 1947 |
| Memoirs through the years, 6 : a Catholic experience in the fifties | Jennings, Mary Lou | Article in Book | | 2004 |
| Michael Ó Cléirigh, Chief of the Four Masters, and his associates | Jennings, Brendan | Monograph or Collective Volume | Talbot Press | 1936 |
| Mícheál Ó Cléirigh, his associates and St Anthony's College, Louvain | Jennings, BrendanMooney, CaniceO'Brien, FelimWalsh, Paul, Revd, 1885-1941 | Monograph or Collective Volume | Four Courts | 2008 |
| Mid to late Holocene relative sea-level and sedimentary changes in southwest Ireland | Delaney, Catherine A.,Devoy, Robert J.N.,Jennings, Simon C. | Article in Book | | 2012 |
| Miscellaneous documents : 2, 1625-40 | | Article in Journal | | 1949 |
| Miscellaneous documents, 1588-1715 | NA | Article in Journal | | 1950 |
| Miscellaneous documents, 1602-1715 | Jennings, Brendan | Article in Journal | | 1950 |
| Notable figures with Longford family ties | O'Hara, Aidan | Article in Journal | | 2007 |
| Peter Coffey (1876-1943) : from neo-scholastic scholar to social theorist | Jennings, Gavan | Article in Book | | 2009 |
| Political and social dimensions of emergency law in Northern Ireland | Hillyard, Paddy | Article in Book | | 1988 |
| Railways | Jennings, Patrick | Article in Book | | 2006 |
| Republicanism in theory and practice | | Monograph or Collective Volume | Routledge | 2006 |
| Richard Jennings 1787-1874 | Ronald, Heather | Article in Journal | | 2002 |
| Sean O'Faoláin's discourse of 'the betrayal of the Republic' in mid-twentieth century Ireland | McNally, Mark | Article in Book | | 2006 |
| Shoot to Kill: The Final Courts of Justice | Jennings, Anthony | Article in Book | | 1988 |
| Sint-Truiden : Irish Franciscan documents | | Article in Journal | | 1963 |
| Some correspondence of Father Luke Wadding, O.F.M. | Jennings, Brendan | Article in Journal | | 1959 |
| Some noteworthy Cork contributions to the pursuit of knowledge in relation to soils and agriculture | Collins, J.F. | Article in Journal | | 2010 |
| Stiles, milestones & kissing gates | Jennings, Robert, Canon | Article in Journal | | 2007 |
| The abbey of Kilconnell : two documents | Jennings, Brendan | Article in Journal | | 1945 |
| The abbey of Muckross | Jennings, Brendan | Article in Journal | | 1940 |
| The abbey of St Francis, Galway | Jennings, Brendan | Article in Journal | | 1946 |
| The Brehon Law School at Park | Jennings, Margaret | Article in Book | | 2006 |
| The career of Hugh, son of Rory O'Donnell, earl of Tyrconnell, in the Low Countries, 1607-42 | Jennings, Brendan | Article in Journal | | 1941 |
| The chalices and books of Kilconnell abbey | Jennings, Brendan | Article in Journal | | 1944 |
| The Dungarvan Valley caves project: second interim report | Jennings, RichardÓ Drisceoil, Cóilín | Article in Journal | | 2009 |
| The Fitzgerald family of Carrigoran, Newmarket on Fergus, county Clare | Jennings, Nicola | Article in Journal | | 2011 |
| The historical writings of Brendan Jennings, O.F.M. (1883-1970) | Lynch, Anthony | Article in Book | | 1995 |
| The indictment of Fr. John Preston, Franciscan | | Article in Journal | | 1963 |
| The Irish brandy houses of eighteenth-century France | Cullen, L. M. (Louis Michael) | Monograph or Collective Volume | Lilliput | 2000 |
| The Irish convent of Micheál Ó Cléirigh | Jennings, Brendan | Article in Journal | | 1958 |
| The Irish Diaspora, a challenge for genealogists | Jennings, Stanley | Article in Journal | | 2011 |
| The Irish Franciscans at Boulay | Jennings, Brendan | Article in Journal | | 1944 |
| The Irish Franciscans in Poland | Jennings, Brendan | Article in Journal | | 1957 |
| The Irish Franciscans in Prague | Jennings, Brendan | Article in Journal | | 1939 |
| The Irish Tontine (1777) and Fifty Genevans : An Essay on Comparative Mortality | Jennings, R. M.Trout, A. P. | Article in Journal | | 1983 |
| The Irwins of Newtownmountkennedy | Jennings, Robert | Article in Journal | | 2004 |
| The Jacobite duchess : Frances Jennings, duchess of Tyrconnell, c.1649-1731 | Nolan, Frances | Monograph or Collective Volume | Boydell Press | 2021 |
| The Kilkenny archaeological project | Bradley, John, 1954-2014Healy, JohnJennings, RichardMcCullough, LeahÓ Drisceoil, Cóilín | Article in Journal | | 2009 |
| The letters of Katherine Conolly 1707-1747 | | Monograph or Collective Volume | Irish Manuscripts Commission | 2018 |
| The Place names of Ireland | Jennings, H. Stanley | Article in Journal | | 2012 |
| The Prevention of Terrorism Acts | Hall, Peter | Article in Book | | 1988 |
| The religious orders in Ireland in the seventeenth century | Jennings, Brendan | Article in Book | | 1937 |
| The Supergrass System | Greer, Steven | Article in Book | | 1988 |
| The voyage of Saint Brendan in old French | Jennings, Catherine | Article in Journal | | 1984 |
| Theses defended in St Isidore's College, Rome, 1631-1649 | Jennings, Brendan | Article in Journal | | 1959 |
| Thomas Coneys : first professor of Irish in T.C.D | Jennings, Catherine | Article in Journal | | 1995 |
| Threnodia Hiberno-Catholica | Conry, MauriceJennings, BrendanO'Doherty, J. F. | Article in Journal | | 1947 |
| To make a better mousetrap : a biography of the remarkable Rex McCandless, 1915-1992 | Jennings, R. L. | Monograph or Collective Volume | Jennings | 2004 |
| Viking age metalworking : the British Isles and Scandinavia compared | Bayley, Justine | Article in Book | | 1992 |
| Wadding papers, 1614-38 | | Monograph or Collective Volume | The Stationery Office [for the Irish Manuscripts Commission] | 1953 |
| Wicklow's "hidden" heritage | Jennings, Robert, Canon | Article in Journal | | 2003 |
| Wild geese in Spanish Flanders, 1582-1700, Documents relating chiefly to Irish regiments, from the Archives Générales du Royaume, Brussels, and other sources | | Monograph or Collective Volume | Stationery Office for the Irish Manuscripts Commission | 1964 |
| Wills relating to Waterford. 5 | Walton, Julian | Article in Journal | | 1983 |