| Date of birth: | 27 July 1913 |
| Date of death: | 16 April 1941 |
| Awards: | 1939-45 Star; Africa Star; Defence Medal; War Medal 1939-45; NZ War Service Medal |
| Occupation: | Labourer |
| Last known residence: | Ohau, Levin |
| Cause of death: | Killed in action |
| Place of death: | Greece |
| Buried where: | Phaleron War Cemetery, Athens, Greece. 13.E.18 |
| Spouses name: | Maggie |
| Fathers name: | Putu O'Brien |
| Theatres of war: | Egypt; Greece |
| Surname: | O'BRIEN |
| War memorial: | Levin RSA Memorial |
| Place enlisted: | Palmerston North |
| Christian names: | John |
| Wars: | WW 11 |
| Service number: | 30047 |
| Date enlisted: | 20 November 1939 |
| Final rank: | Private |
| Regiment or service: | 22nd (Motor) Bn NZ Infantry |
| User reference: | 11.283 |
