| A Garda experience of UN peacekeeping in Yugoslavia | Molloy, Barry | Article in Journal | | 2024 |
| A letter from Rome to the Irish clergy, AD 640 | Harrison, Kenneth | Article in Journal | | 1984 |
| A newly discovered Prologue of AD 699 to the Easter Table of Victorius of Aquitaine in an unknown Sirmond manuscript | Warntjes, Immo | Article in Journal | | 2010 |
| Austin Stack : portrait of a separatist | Gaughan, J. Anthony, 1932- | Monograph or Collective Volume | Kingdom Books | 1977 |
| Columbanus and Gennadius | Cedro, Carlo | Article in Journal | | 2021 |
| Contention after Mag Léne. Identifying the 'Paries Dealbatus' in Cummian's Paschal Letter | McAlary, Patrick | Article in Journal | | 2022 |
| Cormac, Solomon, and One Shearing for Another | Carey, JohnHillers, Barbara | Article in Journal | | 2022 |
| Correspondence. British plans to raid Liberty Hall in 1916 | Devine, Francis | Article in Journal | | 2007 |
| Cummian's Letter de Controversia Paschalia and the De Ratione Conputandi | | Monograph or Collective Volume | | 1988 |
| Damned Englishman : a study of Erskine Childers (1870-1922) | Cox, T. | Monograph or Collective Volume | Exposition Press | 1975 |
| Die irische Unabhängigkeitsbewegung, 1916-1922 | Gundelach, Thomas | Monograph or Collective Volume | Lang | 1977 |
| Irish historical documents since 1800 | | Monograph or Collective Volume | Gill & Macmillan | 1992 |
| Last words : letters and statements of the leaders executed after the rising at Easter 1916 | MacLochlainn, P. F. | Monograph or Collective Volume | | 1990 |
| New light on Palladius | Ó Cróinín, Dáibhí | Article in Journal | | 1986 |
| Revolutionary underground : the story of the Irish Republican Brotherhood 1858-1924 | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | Gill & Macmillan | 1976 |
| Tech Saxan. An Anglo-Saxon monastic settlement in early medieval east Galway | Mannion, Joseph | Article in Journal | | 2008 |
| The Anatomy of a Nationalist Revolution : Ireland, 1858-1928 | Garvin, Tom | Article in Journal | | 1986 |
| The Date of the Irish Computistical Tract "De ratione conputandi" | Loevenich, Tobit | Article in Journal | | 2023 |
| The early Irish church and the Holy See | Ryan, J. | Article in Journal | | 1960 |
| The Holy Man of Ballyvourney | Tourney, Christopher P. | Article in Journal | | 1985 |
| The Irish provenance of Bede's computus | Ó Cróinín, Dáibhí | Article in Journal | | 1983 |
| The Munich Computus and the 84 (14) - year Easter reckoning | Warntjes, Immo | Article in Journal | | 2007 |
| The Origins of the Free-standing Stone Cross in Ireland : Imitation or Innovation? | Edwards, Nancy | Article in Journal | | 1985 |
| Unzivilisierte Kriege im zivilisierten Europa? : Die Balkankriege und die öffentliche Meinung in Deutschland, England und Irland 1876-1913 | Keisinger, Florian | Monograph or Collective Volume | Ferdinand Schöningh | 2008 |
| What's in a dot? | Kilbride-Jones, H. E. | Article in Journal | | 1990 |