| Regimental number | 12818 |
| Occupation | Labourer |
| Next of kin | Brother, J O'Brien, Ngapara, Otago |
| Rank on embarkation | Gunner |
| Unit name | New Zealand Expeditionary Force, 40th Reinforcements, New Zealand Field Artillery |
| Embarkation details | Unit embarked from Wellington on board HMNZT 107 Tahiti on |
| Sources | Nominal Rolls Vol. 4: Roll 86, p. 18 |