| 4795 | Irish Jesuit Archives | N4/14 | 1878 | Letter to Mrs O'Hagan from Rose [Mulholland] wri... | Papers of Judge John O'Hagan (1822-1890) |
| 22189 | Irish Jesuit Archives | N4/ | 1865 | 18 Letter from O'Hagan to his 'dear Sister' Marianne... | Papers of Judge John O'Hagan (1822-1890) |
| 22190 | Irish Jesuit Archives | N4/ | 1872 | 20 16 June 1872. Letter from O'Hagan to his sister M... | Papers of Judge John O'Hagan (1822-1890) |
| 22191 | Irish Jesuit Archives | N4/ | 1890 | 25 13 November 1890. Letter of condolence to Mrs O'H... | Papers of Judge John O'Hagan (1822-1890) |
| 22192 | Irish Jesuit Archives | N4/ | 1890 | 26 Letter of condolence to Mrs O'Hagan, from Laurenc... | Papers of Judge John O'Hagan (1822-1890) |
| 22193 | Irish Jesuit Archives | N4/ | 1890 | 28 Letter of condolence to Mrs O'Hagan from Patrick ... | Papers of Judge John O'Hagan (1822-1890) |
| 22194 | Irish Jesuit Archives | N4/ | 1890-1894 | Death of O'Hagan, 1890-1894: 29 9 December 1890. Let... | Papers of Judge John O'Hagan (1822-1890) |
| 22195 | Irish Jesuit Archives | N4/ | | 30 Letter of condolence to Mrs O'Hagan from David Pi... | Papers of Judge John O'Hagan (1822-1890) |
| 22196 | Irish Jesuit Archives | N4/ | 1891 | 31 Letter to Mrs O'Hagan from ? Micks, former Assist... | Papers of Judge John O'Hagan (1822-1890) |
| 22197 | Irish Jesuit Archives | N4/ | 1893 | 32 Letter to Mrs O'Hagan from author, poet and schol... | Papers of Judge John O'Hagan (1822-1890) |
| 22198 | Irish Jesuit Archives | N4/ | 1893 | 33 20 February -28 May 1893. Letters to Mrs O'Hagan ... | Papers of Judge John O'Hagan (1822-1890) |
| 22199 | Irish Jesuit Archives | N4/ | 1894 | 34 Letter to Mrs O'Hagan from Aubrey de Vere, writte... | Papers of Judge John O'Hagan (1822-1890) |