| Regimental number | 1720 |
| Place of birth | Cossack, Western Australia |
| Religion | Roman Catholic |
| Occupation | Engine driver |
| Marital status | Single |
| Age at embarkation | 34 |
| Next of kin | Mother, Mrs L Attwell, Stockdale Farm, Coogee via Fremantle, Western Australia |
| Enlistment date | 28 February 1916 |
| Date of enlistment from Nominal Roll | 26 February 1916 |
| Rank on enlistment | Private |
| Unit name | 44th Battalion, 1st Reinforcement |
| AWM Embarkation Roll number | 23/61/2 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT A29 Suevic on 6 June 1916 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 28th Battalion |
| Fate | Returned to Australia 31 October 1917 |
| Family/military connections | Brothers: 1154 Pte Fred Hamilton ALLEN, 3rd Light Horse Field Ambulance, returned to Australia, 21 May 1917; 7938 Driver Hamilton Edward ALLEN, Australian Motor Transport Company, effective abroad (still overseas); Lt Joseph William ALLEN MC, 3rd Tunnelling Company, returned to Australia, 20 December 1918. |
