| Regimental number | 5387 |
| Religion | Roman Catholic |
| Occupation | Wharf Labourer |
| Address | Cristie Street, St Leonards, New South Wales |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Father, Patrick O'Brien, Spring Flat, Mudgee, New South Wales |
| Enlistment date | 26 November 1915 |
| Date of enlistment from Nominal Roll | 3 December 1915 |
| Rank on enlistment | Private |
| Unit name | 20th Battalion, 14th Reinforcement |
| AWM Embarkation Roll number | 23/37/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A18 Wiltshire on 22 August 1916 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 20th Battalion |
| Fate | Returned to Australia 19 June 1919 |
