| Regimental number | 10140 |
| Place of birth | Balmain, New South Wales |
| Religion | Church of England |
| Occupation | Clerk |
| Address | Balmain, Sydney, New South Wales |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Mother, Mrs Callaghan, 'Revenscourt', Wharf Road, Onails Bay, New South Wales |
| Enlistment date | |
| Rank on enlistment | Gunner |
| Unit name | Reinforcement 2 |
| AWM Embarkation Roll number | 13/33/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A35 Berrima on |
| Rank from Nominal Roll | Bombardier |
| Unit from Nominal Roll | 2nd Division Ammunition Column |
| Fate | Returned to Australia |
| Discharge date | |
| Other details |
War service: Western Front Commenced return to Australia, 22 November 1919; disembarked Sydney, 12 January 1920; discharged, 27 March 1920. Medals: British War Medal, Victory Medal |
| Miscellaneous details | Name recorded on Embarkation Roll as Walter John CALLAGHAN. |
Postal Address:
Po Box 7916
Canberra BC 2610, Australia
Street Address:
Northcott Drive,
Campbell, ACT 2600
