| A life of Patrick Cardinal O'Donnell | Gallagher, John P. | Thesis | | 1975 |
| Aonach Thír Chonaill: Aonach Gaeilge | Mac Congáil, Nollaig | Article in Journal | | 2022 |
| Bishop Patrick O'Donnell and Rome | Silke, John J. | Article in Journal | | 2013 |
| Cardinal Patrick O'Donnell and Scotland | Canning, B. J. (Bernard J.) | Article in Journal | | 2001 |
| Cardinal Patrick O'Donnell, 1856-1927 | Ó Baoighill, Pádraig S. | Monograph or Collective Volume | Foilseacháin Chró na mBothán | 2008 |
| Donegal and Derry bishops help decide 1911 North Tyrone by-election | Dooher, John | Article in Journal | | 2010 |
| Patrick Cardinal O'Donnell | Silke, John J. | Article in Journal | | 1988 |
| Patrick Cardinal O'Donnell and the Irish language | Ó 'Baoighill, Pádraig | Article in Journal | | 2004 |
| Stair Litríocht Ghaeilge Dhún Na nGall le Céad Bliain Anuas | Mac Congáil, Nollaig | Article in Book | | 1995 |
| Upholding the commandments and the will of the majority: the Catholic hierarchy, the October 1922 pastoral, and the Irish civil war | Waldron, KieranÓ Corráin, Daithí | Article in Journal | | 2023 |