| Regimental number | 7597 |
| Place of birth | Auburn Victoria |
| Religion | Presbyterian |
| Occupation | Clerk |
| Address | 13 Mountain Grove, East Kew, Victoria |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Father, John Mezger, 13 Mountain Grove, East Kew, Victoria |
| Enlistment date | 3 August 1915 |
| Rank on enlistment | Private |
| Unit name | Company 300, Reinforcement 11 |
| AWM Embarkation Roll number | 25/99/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board RMS Osterley on 29 September 1915 |
| Rank from Nominal Roll | Driver |
| Unit from Nominal Roll | 5th Motor Transport Section |
| Fate | Returned to Australia 9 August 1919 |