| Regimental number | 600 |
| Religion | Roman Catholic |
| Occupation | Clerk |
| Address | Rockhampton, Queensland |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Mother, Mrs Ann O'Neill, Trail Siding, Chinchilla, Queensland |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | Machine Gun Company 11, Reinforcement 9 |
| AWM Embarkation Roll number | 24/16/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A11 Ascanius on |
| Regimental number from Nominal Roll | 600A |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 3rd Machine Gun Battalion |
| Fate | Returned to Australia |
| Miscellaneous details (Nominal Roll) | *Spelt Joseph Francis O'Neill on NR |
| Miscellaneous information from cemetery records | Plaque in Queensland Garden of Remembrance |
| Date of death |