| Regimental number | 3362 |
| Place of birth | Sydney New South Wales |
| Religion | Roman Catholic |
| Occupation | Clerk |
| Address | Belmore, New South Wales |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, John O'Brien, Clarence Street, Belmore, Sydney, New South Wales |
| Enlistment date | 2 June 1917 |
| Rank on enlistment | Private |
| Unit name | 35th Battalion, 8th Reinforcement |
| AWM Embarkation Roll number | 23/52/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A28 Miltiades on 2 August 1917 |
| Rank from Nominal Roll | Corporal |
| Unit from Nominal Roll | 35th Battalion |
| Fate | Returned to Australia 3 July 1919 |
