| A propaganda Fide letter-book concerning Ireland, 1672-4 | | Article in Journal | | 1955 |
| Acta Sacrae Congregationis de Propaganda Fide, 1622-50 | | Article in Journal | | 1959 |
| An appeal of the Ulster Franciscans against Blessed Oliver Plunket | Jennings, Brendan | Article in Journal | | 1956 |
| 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 |
| 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 |
| Ecclesiastical appointments in Ireland, Aug. 1643 - Dec. 1649 | Jennings, Brendan | Article in Journal | | 1959 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| Sint-Truiden : Irish Franciscan documents | | Article in Journal | | 1963 |
| Some correspondence of Father Luke Wadding, O.F.M. | Jennings, Brendan | Article in Journal | | 1959 |
| 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 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 indictment of Fr. John Preston, Franciscan | | Article in Journal | | 1963 |
| The Irish convent of Micheál Ó Cléirigh | Jennings, Brendan | Article in Journal | | 1958 |
| 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 religious orders in Ireland in the seventeenth century | Jennings, Brendan | Article in Book | | 1937 |
| Theses defended in St Isidore's College, Rome, 1631-1649 | Jennings, Brendan | Article in Journal | | 1959 |
| Threnodia Hiberno-Catholica | Conry, MauriceJennings, BrendanO'Doherty, J. F. | Article in Journal | | 1947 |
| Wadding papers, 1614-38 | | Monograph or Collective Volume | The Stationery Office [for the Irish Manuscripts Commission] | 1953 |
| 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 |