| Regimental number | 5858 |
| Religion | Roman Catholic |
| Occupation | Driver |
| Address | Wellington Street, Kensington, South Australia |
| Marital status | Single |
| Age at embarkation | 27 |
| Next of kin | Mother, Mrs Mary O'Sullivan, Wellington Street, Kensington, South Australia |
| Enlistment date | 12 January 1915 |
| Rank on enlistment | Driver |
| Unit name | Light Horse Brigade Train 4 |
| AWM Embarkation Roll number | 25/102/1 |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board HMAT A19 Afric on 26 May 1915 |
| Miscellaneous details (Nominal Roll) | Name does not appear on Nominal Roll |
| Family/military connections | Brother: 5857 Driver Conan Hyacinth O'SULLIVAN, 1st Division Train, returned to Australia, 23 March 1919. |