| 'Faithful Children of the Holy See': The Defence Forces Chaplaincy Service, 1945-59 | Hartigan, Maurice | Article in Journal | | 2023 |
| Defence Forces Chaplains and the United Nations Mission to the Congo, 1960-1964 | Hartigan, Maurice | Article in Journal | | 2021 |
| Moves towards modernisation : the Defence Forces chaplaincy service, 1964-1980 | Hartigan, Maurice | Article in Journal | | 2024 |
| The 'reverend gentlemen' of the early years of the Irish Army Chaplaincy Service | Hartigan, Maurice | Article in Journal | | 2019 |
| The Catholic laity in Dublin, 1920-1940 | Hartigan, Maurice | Thesis | | 1992 |
| The chaplaincy service of the defence forces during the Emergency, 1939-1945 | Hartigan, Maurice | Article in Journal | | 2024 |
| The religious life of the Catholic laity of Dublin, 1920-40 | Hartigan, Maurice | Article in Book | | 2000 |