| Regimental number | 6958 |
| Place of birth | Dalby Queensland |
| Religion | Roman Catholic |
| Occupation | Railway clerk |
| Address | Dalby, Queensland |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, F Callaghan, Cattle Dip, Dalby, Queensland |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 15th Battalion, 23rd Reinforcement |
| AWM Embarkation Roll number | 23/32/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A72 Beltana on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 41st Battalion |
| Fate | Returned to Australia |
| Family/military connections | Brother: 2872 Pte Thomas CALLAGHAN, 2nd Light Horse Regiment, killed in action, 19 April 1917. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |