| Regimental number | ... |
| Religion | Church of England |
| Occupation | Jewellery salesman |
| Address | Commonwealth Bank of Australia, Melbourne, Victoria |
| Marital status | Single |
| Age at embarkation | 25 |
| Next of kin | Father, John Geo Williamson, 21 Brunning Street, Balaclava, Melbourne, Victoria |
| Enlistment date | 22 June 1915 |
| Rank on enlistment | Lieutenant |
| Unit name | 21st Battalion, 10th Reinforcement |
| AWM Embarkation Roll number | 23/38/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A18 Wiltshire on 7 March 1916 |