| Regimental number | 1729 |
| Place of birth | Aldershot England |
| Religion | Roman Catholic |
| Occupation | Groom |
| Address | Hannan Street, Kalgoorlie PO, Kalgoorlie, Western Australia |
| Marital status | Single |
| Age at embarkation | 25 |
| Next of kin | Father, John O'Neil, 9 Market Square, Dumfries, Maxwell Town, Scotland |
| Enlistment date | 26 July 1915 |
| Rank on enlistment | Private |
| Unit name | 10th Light Horse Regiment, 11th Reinforcement |
| AWM Embarkation Roll number | 10/15/2 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT A24 Benalla on 1 November 1915 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT A32 Themistocles on 13 October 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 10th Light Horse Regiment |
| Fate | Discharged 17 November 1919 |
