| Regimental number | 39552 |
| Place of birth | Australia |
| Occupation | Horse driver |
| Next of kin | Father, R O'Brien, 30 Church Street, Ponsonby, Auckland |
| Rank on embarkation | Private |
| Unit name | New Zealand Expeditionary Force, 22nd Reinforcements, Wellington Infantry Regiment, B Company |
| Embarkation details | Unit embarked from Wellington on board HMNZT Aparima on |
| Sources | Nominal Roll Vol. 3: Roll 55, p. 9 |