| Regimental number | 1141 |
| Place of birth | Morwell Victoria |
| Religion | Church of England |
| Occupation | Farm labourer |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, A Firmin, Morwell, Victoria |
| Enlistment date | 28 September 1914 |
| Rank on enlistment | Private |
| Unit name | 8th Battalion, 1st Reinforcement |
| AWM Embarkation Roll number | 23/25/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A32 Themistocles on 22 December 1914 |
| Regimental number from Nominal Roll | 1146 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 8th Battalion |
| Fate | Returned to Australia 10 June 1915 |
| Family/military connections | Brothers: 1694 Pte Alfred FIRMIN, 46th Bn, killed in action, 11 April 1917; 1142 Pte George William FIRMIN, 8th Bn, killed in action, 8 May 1917. |