| Regimental number | 104 |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Address | Kittagora, Coolamon, New South Wales |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Father, Patrick O'Brien, Kittagora, Coolamon, New South Wales |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | Machine Gun Company 10 |
| AWM Embarkation Roll number | 24/15/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A11 Ascanius on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 10th Machine Gun Company |
| Fate | Killed in Action |
| Age at death from cemetery records | 21 |
| Place of burial | Strand Military Cemtery (Plot I, Row C, Grave No. 8), Ploegsteert, Belgium |
| Panel number, Roll of Honour, Australian War Memorial | 179 |
| Miscellaneous information from cemetery records | Parents: Patrick and Harriet O'BRIEN, Kittegora, Coolamon, New South Wales |
Postal Address:
Po Box 7916
Canberra BC 2610, Australia
Street Address:
Northcott Drive,
Campbell, ACT 2600
