| Regimental number | ... |
| Religion | Church of England |
| Occupation | Clerk |
| Address | 143 Kensington Street, East Perth, Western Australia |
| Marital status | Single |
| Age at embarkation | 23 |
| Next of kin | Father, H E Walker, 143 Kensington Street, East Perth, Western Australia |
| Previous military service | Served for 6 years 3 months in 11th and 88th Infantry Regiments, Citizen Military Forces. |
| Enlistment date | 17 August 1914 |
| Rank on enlistment | 2nd Lieutenant |
| Unit name | 11th Battalion, G Company |
| AWM Embarkation Roll number | 23/28/1 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board Transport A11 Ascanius on 2 November 1914 |
| Rank from Nominal Roll | Lieutenant |
| Unit from Nominal Roll | 11th Battalion |
| Fate | Dismissed 3 July 1917 |
| Other details | Tried by General Court Martial, 24 May 1917: found guilty of attemting to defraud by altering a pay book: sentenced to be dismissed. |
| Sources | NAA: B2455, WALKER Harold Holmes |
