| Regimental number | 637 |
| Place of birth | Wangaratta Victoria |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Address | West Melbourne, Victoria |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, Thomas O'Neill, 211 Roden Street, West Melbourne, Victoria |
| Enlistment date | 21 February 1916 |
| Rank on enlistment | Private |
| Unit name | 39th Battalion, B Company |
| AWM Embarkation Roll number | 23/56/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A11 Ascanius on 27 May 1916 |
| Rank from Nominal Roll | Sapper |
| Unit from Nominal Roll | 2nd A Division Signal Company |
| Fate | Returned to Australia 9 March 1919 |
