| Regimental number | 3203 |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Address | Denman, New South Wales |
| Marital status | Single |
| Age at embarkation | 26 |
| Next of kin | Father, John O'Sullivan, Milltown, County Kerry, Ireland |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 53rd Battalion, 8th Reinforcement |
| AWM Embarkation Roll number | 23/70/4 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A29 Suevic on |
| Regimental number from Nominal Roll | 3202 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 53rd Battalion |
| Fate | Killed in Action |
| Age at death from cemetery records | 30 |
| Place of burial | Peronne Communal Cemetery Extension (Plot I, Row C, Grave No. 17), France |
| Panel number, Roll of Honour, Australian War Memorial | 157 |
| Miscellaneous information from cemetery records | Parents: John and Mary O'SULLIVAN, Callinafercy, Milltown, Co. Kerry |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |