| Regimental number | 6577 |
| Religion | Presbyterian |
| Occupation | Salesman |
| Address | 444 Rathdown Street, North Carlton, melbourne, Victoria |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Father, Robert Williamson, 444 Rathdown Street, North Carlton, melbourne, Victoria |
| Previous military service | 23rd BtyAFA |
| Enlistment date | 19 August 1915 |
| Rank on enlistment | Gunner |
| Unit name | Field Artillery Brigade 4, Battery 11 |
| AWM Embarkation Roll number | 13/32/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A18 Wiltshire on 18 November 1915 |
| Rank from Nominal Roll | Bombardier |
| Unit from Nominal Roll | 4th Field Artillery Brigade |
| Fate | Returned to Australia 22 August 1919 |
| Miscellaneous details (Nominal Roll) | *Given name Joseph Alex |