| Regimental number | 3166 |
| Religion | Church of England |
| Occupation | Labourer |
| Address | Forth, Tasmania |
| Marital status | Single |
| Age at embarkation | 23 |
| Next of kin | Father, W T Onions, Forth, Tasmania |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 12th Battalion, 10th Reinforcement |
| AWM Embarkation Roll number | 23/29/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A17 Port Lincoln on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 51st Battalion |
| Fate | Returned to Australia |
| Family/military connections | Brother: 1875 Pte Albert Carl ONIONS MM, 52nd Bn, killed in action, 11 June 1917. |
| Other details |
Medals: 1914-15 Star, British War Medal, Victory Medal |
| Date of death | |
| Place of burial | Forth Methodist Cemetery |