| Regimental number | 3125 |
| Other Names | O'Shannassy |
| Religion | Roman Catholic |
| Occupation | Farmer |
| Address | Manangatang, Victoria |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Father, William O'Shannessy, Manangatang, Victoria |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 39th Battalion, 7th Reinforcement |
| AWM Embarkation Roll number | 23/56/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A70 Ballarat on |
| Rank from Nominal Roll | Driver |
| Unit from Nominal Roll | 3rd Machine Gun Company |
| Fate | Returned to Australia |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |