| Regimental number | 7/763 |
| Address | Molesworth Station, Canterbury |
| Marital status | Single |
| Next of kin | Mother, Mrs F O'Brian, 24 Roxburgh Street, Wellington |
| Rank on embarkation | Trooper |
| Enlistment status | Volunteer |
| Unit name | New Zealand Expeditionary Force, 2nd Reinforcements, Canterbury Mounted Rifles |
| Embarkation details | Unit embarked from Wellington on |
| Final rank | Trooper |
| Final unit | Canterbury Mounted Rifles Regiment |
| Fate | Killed in Action |
| Age at death from cemetery records | 21 |
| Place of burial | No known grave |
| Commemoration details | Hill 60 (New Zealand) Memorial, Gallipoli, Turkey |
| Miscellaneous information from cemetery records | Parents: Francis and Charlotte O'Brian, Maxwell Road, Blenheim |
| Other details |
War service: Egypt, Gallipoli Medals: 1914-15 Star, British War Medal, Victory Medal |
| Miscellaneous details | Nominal Roll Vol. 1: Canterbury Mounted Rifles/Second |