| A concise history of Ireland | O'Brien, C. C.O'Brien, Máire | Monograph or Collective Volume | Thames & Hudson | 1972 |
| Parnell and his Party, 1880-90 | O'Brien, C. C. | Monograph or Collective Volume | Clarendon Press | 1957 |
| The great melody : a thematic biography and commented anthology of Edmund Burke | O'Brien, C. C. | Monograph or Collective Volume | | 1992 |
| The Irish Parliamentary Party machine, 1874-85 | O'Brien, C. C. | Article in Journal | | 1946 |
| The machinery of the Irish Parliamentary Party, 1880-5 | O'Brien, C. C. | Article in Journal | | 1946 |