| Regimental number | 2759 |
| Place of birth | Bonnyrigg, Scotland |
| Religion | Presbyterian |
| Occupation | Clerk |
| Marital status | Single |
| Age at embarkation | 29.10 |
| Height | 5' 6.5" |
| Weight | 136 lbs |
| Next of kin | Mother, Elizabeth Williamson, Bonnyrigg, Scotland |
| Previous military service | Nil (previously rejected for AIF enlistment on account of teeth). |
| Enlistment date | |
| Place of enlistment | Belmont, Western Australia |
| Rank on enlistment | Private |
| Unit name | 48th Battalion, 6th Reinforcement |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT Port Melbourne on |
| Regimental number from Nominal Roll | 2759A |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 48th Battalion |
| Fate | Returned to Australia |
| Discharge date | |
| Other details |
War service: Western Front Commenced return to Australia on board HT 'Kanowna', 22 July 1918; disembarked Fremantle, 24 August 1918; discharged (wounded), Perth, 3 March 1919. Medals: British War Medal, Victory Medal |
| Sources | NAA: B2455, WILLIAMSON John Alexander |