| Regimental number | 1637 |
| Religion | Roman Catholic |
| Occupation | Farmer |
| Address | Collie via Gilgandra, New South Wales |
| Marital status | Single |
| Age at embarkation | 28 |
| Next of kin | Mother, Mrs Caroline O'Connor, Collie via Gilgandra, New South Wales |
| Enlistment date | 12 January 1916 |
| Rank on enlistment | Private |
| Unit name | 45th Battalion, 2nd Reinforcement |
| AWM Embarkation Roll number | 23/62/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A40 Ceramic on 14 April 1916 |
| Regimental number from Nominal Roll | 1637A |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 45th Battalion |
| Fate | Returned to Australia 8 April 1917 |
| Family/military connections | Brothers: 1663 Private Patrick O'CONNOR, 45th Battalion, 2nd Reinforcement, returned to Australia 24 August 1916; 1645 George William O'Connor, 45th Battalion, 2nd Reinforcement, killed in action 7 June 1917, Age 35. |
| Date of death | 30 March 1961 |
| Place of burial | Dubbo Cemetery |
