| Regimental number | 7300 |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Address | Newcastle, New South Wales |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Mother, Mrs. R. O'Sullivan, 162 Darby Street, Cooks Hill, Newcastle, New South Wales |
| Enlistment date | 29 January 1917 |
| Date of enlistment from Nominal Roll | 8 December 1916 |
| Rank on enlistment | Private |
| Unit name | 2nd Battalion, 24th Reinforcement |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board RMS Osterley on 10 February 1917 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 2nd Battalion |
| Fate | Effective abroad (still overseas) |
| Family/military connections | Brother: 7302 Pte Richard O'SULLIVAN, 2nd Bn, returned to Australia, 17 March 1919: 7301 Pte James Mortimer O'SULLIVAN, 2nd Bn, returned to Australia, 5 April 1919. |
