| Service number | 2412 |
|---|---|
| Rank | Private |
| Unit | 30th Australian Infantry Battalion |
| Conflict/Operation | First World War, 1914-1918 |
| Enlistment Date | 1915-09-25 |
| Fate | Returned to Australia |
| Fate Date | 05 July 1919 |
First World War Nominal Roll John Joseph O'Brien
| Service number | 2412 |
|---|---|
| Rank | Private |
| Unit | 30th Australian Infantry Battalion |
| Conflict/Operation | First World War, 1914-1918 |
| Enlistment Date | 1915-09-25 |
| Fate | Returned to Australia |
| Fate Date | 05 July 1919 |
