| 'Meddling at the crossroads' : the decline and fall of Terence O'Neill within the Unionist community | Cochrane, Feargal | Article in Book | | 1996 |
| Autobiography | O'Neill, Terence | Monograph or Collective Volume | Hart-Davis | 1972 |
| Northern Ireland at the crossroads : Ulster Unionism in the O'Neill years 1960-9 | Mulholland, Marc | Monograph or Collective Volume | Macmillan | 2000 |
| Reconciliation, rights, and protests, 1963-8 | Whyte, J. H. | Article in Book | | 2003 |
| Terence O'Neill (1914-1990) remembered | Bloomfield, Kenneth, Sir, 1931- | Article in Journal | | 2002 |
| Terence O'Neill and his politics | Wichert, Sabine | Article in Book | | 1994 |
| The "best and most forward-looking" in Ulster unionism : the Unionist Society (est. 1942) | Mulholland, Marc | Article in Journal | | 2002 |
| The Northern Ireland civil rights movement | Purdie, Bob | Article in Book | | 1995 |