Children |
| 1. William Smith O'Brien, b. 17 Oct 1803, Dromoland Castle,Clare, Ireland , d. 16 Jun 1864, Bangor,Wales (Age 60 years) |
| 2. Sir Lucius O'Brien, b. 1801, Dromoland, Clare, Ireland , d. 22 Mar 1872 (Age 71 years) |
| 3. Robert O'Brien, b. 15 Oct 1809, Unknown, Ireland , d. 5 Mar 1870, Limerick (Age 60 years) |
| 4. Harriet Monsell O'Brien, b. 1812, Unknown, Isle of Man , d. 26 Mar 1883 (Age 71 years) |
| 5. Edward O'Brien, b. 1806, Unknown, Ireland , d. 9 May 1840, Yorkshire,England (Age 34 years) |
| 6. Henry O'Brien, b. 1813, Unknown, Ireland |
| 7. Grace O'Brien, b. Abt 1814, Unknown, Ireland |
| 8. Anne O'Brien, b. Abt 1816, Unknown, Ireland |
| 9. Katherine O'Brien, b. 1814, Unknown, Ireland |
| 10. Leney O'Brien, b. Abt 1818, Unknown, Ireland |
|