| Regimental number | 2371 |
| Religion | Roman Catholic |
| Occupation | Clerk |
| Address | Ballan, Victoria |
| Marital status | Single |
| Age at embarkation | 25 |
| Next of kin | Father, Mathew O'Brien, Ballan, Victoria |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | 38th Battalion, 4th Reinforcement |
| AWM Embarkation Roll number | 23/55/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A17 Port Lincoln on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 42nd Battalion |
| Recommendations (Medals and Awards) |
Military Medal Recommendation date: |
| Fate | Returned to Australia |
Postal Address:
Po Box 7916
Canberra BC 2610, Australia
Street Address:
Northcott Drive,
Campbell, ACT 2600
