| Regimental number | 3004 |
| Place of birth | St Marys N/A |
| Religion | Presbyterian |
| Occupation | Labourer |
| Marital status | Single |
| Age at embarkation | 27 |
| Next of kin | Brother, Geo. O'Connor, 18 Ferris Street, Annandale, Sydney, New South Wales |
| Enlistment date | 19 November 1915 |
| Rank on enlistment | Private |
| Unit name | 31st Battalion, 5th Reinforcement |
| AWM Embarkation Roll number | 23/48/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A68 Anchises on 14 March 1916 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 8th Machine Gun Company |
| Fate | Returned to Australia 21 December 1917 |
| Date of death | 26 September 1951 |
| Place of burial | Botany Cemetery |