| Regimental number | 1628 |
| Date of birth | |
| Place of birth | Orroroo, South Australia |
| Religion | Methodist |
| Occupation | Farm labourer |
| Address | Yatina via Yongala, South Australia |
| Marital status | Single |
| Age at embarkation | 24.9 |
| Height | 5' 10.5" |
| Weight | 168 lbs |
| Next of kin | Brother, Edgar George Spencer Ballantyne, Yatina via Yongala, South Australia |
| Previous military service | Nil |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Place of enlistment | Orroroo, South Australia |
| Rank on enlistment | Private |
| Unit name | 48th Battalion, 2nd Reinforcement |
| AWM Embarkation Roll number | 23/65/3 |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board HMAT A60 Aeneas on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 48th Battalion |
| Fate | Returned to Australia |
| Discharge date | |
| Family/military connections | Brother: 1627 Lance Corporal Robert Sydney BALLANTYNE, 48th Bn, returned to Australia, 2 June 1919. |
| Other details |
War service: Egypt, Western Front Commenced return to Australia, 27 August 1919; discharged (medically unfit: wounded: gun shot wound, right thigh), 21 November 1917. Medals: British War Medal, Victory Medal |
| Date of death | |
| Age at death | 55 |
| Place of burial | Gladstone Cemetery, South Australia |
| Sources | NAA: B2455, BALLANTYNE William Stanley |