| Regimental number | 1993 |
| Place of birth | Kogarah New South Wales |
| Religion | Presbyterian |
| Occupation | Storeman |
| Address | Wakefield Street, North Manly, New South Wales |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Father, John Berry Williams, 114 Flinders Street, Darlinghurst, Sydney, New South Wales |
| Enlistment date | 27 January 1916 |
| Rank on enlistment | Private |
| Unit name | 59th Battalion, 3rd Reinforcement |
| AWM Embarkation Roll number | 23/76/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A17 Port Lincoln on 4 May 1916 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 57th Battalion |
| Fate | Returned to Australia 24 December 1918 |
| Miscellaneous details (Nominal Roll) | *Allan spelt Allen |
