| 10272 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs5089b | 1842-1856 | Two letters to the Honourable Grace O'Brien, 1842, 1... | |
| 11155 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs5089b | 1842-1856 | Two letters to the Honourable Grace O'Brien: 1842 18... | O'Brien Family |