| Regimental number | 3348 |
| Place of birth | Nowra New South Wales |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Address | Brisbane GPO, Brisbane, Queensland |
| Marital status | Single |
| Age at embarkation | 44 |
| Next of kin | Brother, James O'Neill, Smithtown, Macleay River, New South Wales |
| Enlistment date | 23 March 1917 |
| Rank on enlistment | Private |
| Unit name | 41st Battalion, 8th Reinforcement |
| AWM Embarkation Roll number | 23/58/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A20 Hororata on 14 June 1917 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 41st Battalion |
| Fate | Returned to Australia 8 August 1918 |
