| Regimental number | 640 |
| Place of birth | South Australia |
| Religion | Church of England |
| Occupation | Woodwork machinist |
| Address | 1 Amsterdam Street, Richmond, Victoria |
| Marital status | Single |
| Age at embarkation | 28 |
| Next of kin | Mother, Mrs S O'Neill, 1 Amsterdam Street, Richmond, Victoria |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 20th Battalion, B Company |
| AWM Embarkation Roll number | 23/37/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A35 Berrima on |
| Miscellaneous details (Nominal Roll) | Name does not appear on Nominal Roll |
| Miscellaneous information from cemetery records | Parents: Peter and Susan O'NEILL |
| Other details |
Medals: 1914-15 Star, British War Medal, Victory Medal |
| Date of death | |
| Age at death | 45 |
| Place of burial | West Terrace Cemetery, Adelaide, South Australia |