| 'A particular view of what was possible': Labour in government | McCullagh, David | Article in Book | | 2012 |
| 'Not another book about Dev!' | McCullagh, David | Article in Journal | | 2019 |
| 'Nothing but a bullet will stop me' : Éamon de Valera and the 1923 General Election | McCullagh, David | Article in Book | NA | 2023 |
| 17 March 1922: ‘Wading Through Blood’ in Thurles
Éamon de Valera’s Civil War | McCullagh, David | Article in Book | | 2022 |
| A makeshift majority : the first inter-party government, 1948-51 | McCullagh, David | Monograph or Collective Volume | [s.n.] | 1998 |
| De Valera: Rise 1882-1932 | McCullagh, David | Monograph or Collective Volume | Gill Books | 2017 |
| DeValera: Rule 1932-1975 | McCullagh, David | Monograph or Collective Volume | Gill Books | 2018 |
| Éamon de Valera, 1932-48; 1952-4; 1957-9 | McCullagh, David | Article in Book | NA | 2025 |
| The reluctant taoiseach : a biography of John A. Costello | McCullagh, David | Monograph or Collective Volume | Gill & Macmillan | 2010 |