| Regimental number | 2324 |
| Place of birth | Elliminyt, Victoria |
| Religion | Methodist |
| Occupation | Blacksmith |
| Address | Elliminyt via Colac, Victoria |
| Marital status | Single |
| Age at embarkation | 23 |
| Next of kin | Father, John Fleming Ballagh, Elliminyt via Colac, Victoria |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 2nd Pioneer Battalion, Reinforcement 4 |
| AWM Embarkation Roll number | 14/14/4 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A32 Themistocles on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 2nd Pioneer Battalion |
| Fate | Returned to Australia |
| Family/military connections | Brothers: 1236 Sapper John David BALLAGH, 4th Divisional Signal Company, returned to Australia, 23 July 1919; 6617 Pte William Fleming BALLAGH MM, 7th Bn, returned to Australia, 12 June 1919. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |