| Service number | 2519 |
|---|---|
| Rank | Private |
| Unit | 18th Australian Infantry Battalion |
| Conflict/Operation | First World War, 1914-1918 |
| Enlistment Date | 1915-05-13 |
| Fate | Returned to Australia |
| Fate Date | 22 July 1917 |
First World War Nominal Roll William Henry O'Brien
| Service number | 2519 |
|---|---|
| Rank | Private |
| Unit | 18th Australian Infantry Battalion |
| Conflict/Operation | First World War, 1914-1918 |
| Enlistment Date | 1915-05-13 |
| Fate | Returned to Australia |
| Fate Date | 22 July 1917 |
