| Regimental number | 3475 |
| Place of birth | Sydney New South Wales |
| Religion | Church of England |
| Occupation | Hatter |
| Address | Surry Hills, Sydney, New South Wales |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Father, Lewis O'Neill, 20 Little Bourke Street, Surry Hills, Sydney, New South Wales |
| Enlistment date | 10 November 1916 |
| Rank on enlistment | Private |
| Unit name | 1st Pioneer Battalion, 8th Reinforcement |
| AWM Embarkation Roll number | 14/13/4 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A72 Beltana on 25 November 1916 |
| Date of death | 4 July 1962 |
| Place of burial | Rookwood Necropolis |
