| Regimental number | 1050 |
| Place of birth | Campbelltown New South Wales |
| Occupation | Plasterer |
| Address | 'Kirkcauldy', Lenthal Street, Kensington, Sydney, New South Wales |
| Marital status | Single |
| Age at embarkation | 18 |
| Height | 5' 9.25" |
| Weight | 152 lbs |
| Next of kin | Mother, Mrs Victoria Sarah Williamson, 'Kirkcauldy', Lenthal Street, Kensington, Sydney, New South Wales |
| Previous military service | Served in the 24th Infantry, Citizen Military Forces; still serving at time of AN&MEF enlistment. |
| Enlistment date | 11 August 1914 |
| Rank on enlistment | Private |
| Unit name | Naval and Military Expeditionary Force (Tropical Unit), D Company |
| AWM Embarkation Roll number | 23/112/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A35 Berrima on 19 August 1914 |
| Miscellaneous details (Nominal Roll) | Name does not appear on Nominal Roll |
| Miscellaneous details | See 682 Basil Bruce WILLIAMSON for second period of service. |
| Sources | NAA: B2455, WILLIAMSON Basil Bruce |