| Regimental number | 2859 |
| Place of birth | Melbourne, Victoria |
| Religion | Roman Catholic |
| Occupation | Clerk |
| Marital status | Single |
| Age at embarkation | 24 |
| Height | 5' 5.5" |
| Weight | 125 lbs |
| Next of kin | Father, George Dowling O'Neil, 105 Ocean Road, Cottesloe Beach, Western Australia |
| Previous military service | Nil |
| Enlistment date | |
| Place of enlistment | Perth, Western Australia |
| Rank from Nominal Roll | Sergeant |
| Unit from Nominal Roll | 48th Battalion |
| Fate | Killed in Action |
| Other details | Medals: British War Medal, Victory Medal |
| Miscellaneous details | Name does not appear on Embarkation Roll. |
| Date of death | |
| Sources | NAA: B2455, O'NEIL Gregory Dowling |
Postal Address:
Po Box 7916
Canberra BC 2610, Australia
Street Address:
Northcott Drive,
Campbell, ACT 2600
