| Regimental number | 2789 |
| Place of birth | Swan Hill Victoria |
| Religion | Methodist |
| Occupation | Farmer |
| Address | Lake Boga, Victoria |
| Marital status | Single |
| Age at embarkation | 23 |
| Next of kin | Father, John A Walker, Lake Boga, Victoria |
| Enlistment date | 6 March 1916 |
| Rank on enlistment | Private |
| Unit name | 8th Light Horse Regiment, 19th Reinforcement |
| AWM Embarkation Roll number | 10/13/4 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board RMS Mongolia on 11 July 1916 |
| Rank from Nominal Roll | Lance Corporal |
| Unit from Nominal Roll | 3rd Imperial Camel Brigade |
| Fate | Returned to Australia 23 December 1918 |
| Family/military connections | Brother: 2788 Corporal Archibald James WALKER, 15th Light Horse, returned to Australia, 26 July 1919. |