| Regimental number | 1625 |
| Place of birth | Jugiong New South Wales |
| Religion | Roman Catholic |
| Occupation | Grazier |
| Address | Rathden, Cootamundra, New South Wales |
| Marital status | Single |
| Age at embarkation | 25 |
| Next of kin | Father, Patrick Callan, Rathden, Cootamundra, New South Wales |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 56th Battalion, 2nd Reinforcement |
| AWM Embarkation Roll number | 23/73/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A40 Ceramic on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | Australian Army Ordnance Corps |
| Fate | Returned to Australia |
| Family/military connections | Brother: 1626 Pte Ernest Leslie CALLAN, 56th Bn, killed in action, 17 April 1918. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |