| Regimental number | 1978 |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Address | Moree, New South Wales |
| Marital status | Single |
| Age at embarkation | 25 |
| Next of kin | Father, M C O'Brien, Moree, New South Wales |
| Enlistment date | 8 June 1915 |
| Rank on enlistment | Private |
| Unit name | 25th Battalion, 3rd Reinforcement |
| AWM Embarkation Roll number | 23/42/2 |
| Embarkation details | Unit embarked from Brisbane, Queensland, on board HMAT A55 Kyarra on 16 August 1915 |
| Regimental number from Nominal Roll | 1978A |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 9th Battalion |
| Fate | Returned to Australia 21 March 1919 |
