| Regimental number | 5376 |
| Place of birth | Grenfell New South Wales |
| Occupation | Lineman |
| Address | Grenfell, New South Wales |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Father, George O'Brien, Grenfell, New South Wales |
| Enlistment date | 9 May 1916 |
| Date of enlistment from Nominal Roll | 22 February 1916 |
| Rank on enlistment | Private |
| Unit name | 19th Battalion, 14th Reinforcement |
| AWM Embarkation Roll number | 23/36/3 |
| 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 | 19th Battalion |
| Fate | Returned to Australia 15 April 1918 |
