| Regimental number | 1278 |
| Place of birth | Toowoomba Queensland |
| Religion | Baptist |
| Occupation | Cook |
| Address | Gladstone Street, Toowoomba, Queensland |
| Marital status | Single |
| Age at embarkation | 19 |
| Next of kin | Father, Walter William Walker, Gladstone Street, Toowoomba, Queensland |
| Enlistment date | 7 July 1915 |
| Rank on enlistment | Private |
| Unit name | 5th Light Horse Regiment, 9th Reinforcement |
| AWM Embarkation Roll number | 10/10/2 |
| Embarkation details | Unit embarked from Brisbane, Queensland, on board HMAT A1 Hymettus on 17 September 1915 |
| Regimental number from Nominal Roll | 1278A |
| Rank from Nominal Roll | Gunner |
| Unit from Nominal Roll | 13th Field Artillery Brigade |
| Fate | Returned to Australia 15 May 1919 |
| Family/military connections | Brother: 1277 Pte Harold George WALKER, 13th Field Artillery Brigade, returned to Australia, 10 June 1919; Uncle: 497 Pte Roy Stewart WALKER, 42nd Bn, returned to Australia, 15 September 1918. |