| Regimental number | 227 |
| Place of birth | Broken Hill New South Wales |
| Religion | Methodist |
| Occupation | Engine-driver |
| Address | Nicholas Street, Railway Town, Broken Hill, New South Wales |
| Marital status | Single |
| Age at embarkation | 19 |
| Next of kin | Father, Allan Williams, Nicholas Street, Railway Town, Broken Hill, New South Wales |
| Enlistment date | 4 February 1915 |
| Rank on enlistment | Private |
| Unit name | 27th Battalion, B Company |
| AWM Embarkation Roll number | 23/44/1 |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board HMAT A2 Geelong on 31 May 1915 |
| Rank from Nominal Roll | Corporal |
| Unit from Nominal Roll | 2nd Pioneer Battalion |
| Fate | Returned to Australia 5 April 1919 |
| Miscellaneous details (Nominal Roll) | *Allam spelt Allen |