| Regimental number | 1994 |
| Place of birth | Cooktown Queensland |
| Religion | Church of England |
| Occupation | Farmer |
| Address | Gordon Vale, Queensland |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Father, James O'Neill, Gordon Vale, Queensland |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 9th Battalion, 5th Reinforcement |
| AWM Embarkation Roll number | 23/26/2 |
| Embarkation details | Unit embarked from Brisbane, Queensland, on board HMAT A55 Kyarra on |
| Regimental number from Nominal Roll | Commissioned |
| Rank from Nominal Roll | 2nd Lieutenant |
| Unit from Nominal Roll | 47th Battalion |
| Fate | Killed in Action |
| Age at death from cemetery records | 25 |
| Place of burial | Heath Cemetery (Plot II, Row G, Grave No. 12), Harbonnieres, France |
| Panel number, Roll of Honour, Australian War Memorial | 146 |
| Miscellaneous information from cemetery records | Parents: James and Edith O'NEILL, Gordonvale, Queensland |