| Regimental number | 1794 |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Marital status | Single |
| Age at embarkation | 34 |
| Next of kin | Brother, Mr C O'Brien, 27 Bute Road, Cardiff, Wales |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 13th Battalion, 4th Reinforcement |
| AWM Embarkation Roll number | 23/30/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A9 Shropshire on |