| Regimental number | 40752 |
| Occupation | Civil servant |
| Next of kin | Father, Major James O'Sullivan, Defence Headquarters, Wellington |
| Rank on embarkation | 2nd Lieutenant |
| Unit name | New Zealand Expeditionary Force, 30th Reinforcements, Wellington Infantry Regiment, B Company |
| Embarkation details | Unit embarked from Wellington on |
| Members of B Company, Wellington Infantry Regiment, 30th Reinforcements, left New Zealand on 13 October 1917 on two ships, HMNZTs 'Corinthic' and 'Arawa'. It is not possible to determine from the Nominal Roll on which ship an individual embarked. | |
| Final rank | 2nd Lieutenant |
| Final unit | 1st Battalion, Wellington Infantry Regiment |
| Fate | Died of wounds |
| Age at death from cemetery records | 22 |
| Place of burial | Bagneux British Cemetery (Plot V, Row A, Grave No 22), Gezaincourt, France |
| Miscellaneous information from cemetery records | Parents: Major J. & Mrs O'Sullivan, 8 McFarlane Street, Wellington |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |
| Sources | Nominal Roll Vol. 3: Roll 72, p. 6 |