| Regimental number | 1504 |
| Religion | Church of England |
| Occupation | Butcher |
| Address | L. O'Neil, Keilor P.O., Keilor, Victoria |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Father, William O'Neil, Keilor P.O., Keilor, Victoria |
| Enlistment date | 9 July 1915 |
| Date of enlistment from Nominal Roll | 19 July 1915 |
| Rank on enlistment | Private |
| Unit name | 9th Light Horse Regiment, 12th Reinforcement |
| AWM Embarkation Roll number | 10/14/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A40 Ceramic on 23 November 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 9th Light Horse Regiment |
| Fate | Returned to Australia 10 July 1919 |