| Regimental number | 18541 |
| Place of birth | Brisbane Queensland |
| Religion | Church of England |
| Occupation | Clerk and university student |
| Address | 117 Gipps Street, Brisbane, Queensland |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Father, Joseph O'Brien, 117 Gipps Street, Brisbane, Queensland |
| Previous military service | 2nd ALH |
| Enlistment date | |
| Rank on enlistment | Sapper |
| Unit name | May 1917 Reinforcements |
| AWM Embarkation Roll number | 14/42/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A68 Anchises on |
| Rank from Nominal Roll | Sapper |
| Unit from Nominal Roll | Australian Corps Signal Company |
| Fate | Returned to Australia |
| Miscellaneous information from cemetery records | Plaque in Queensland Garden of Remembrance |
| Date of death |
Postal Address:
Po Box 7916
Canberra BC 2610, Australia
Street Address:
Northcott Drive,
Campbell, ACT 2600
