| Regimental number | 423 |
| Religion | Roman Catholic |
| Occupation | Painter |
| Address | 22 Kent Street, Kew, Melbourne, Victoria |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Father, Mitchell O'Connor, 22 Kent Street, Kew, Melbourne, Victoria |
| Enlistment date | 22 February 1915 |
| Rank on enlistment | Private |
| Unit name | 23rd Battalion, B Company |
| AWM Embarkation Roll number | 23/40/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A14 Euripides on 10 May 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 25th Battalion |
| Fate | Returned to Australia 17 October 1916 |
| Date of death | 3 January 1959 |
| Place of burial | Ballarat New Cemetery |