| Regimental number | 1887 |
| Religion | Presbyterian |
| Occupation | Grocer |
| Address | Commonwealth Bank, Broadmeadows, Victoria |
| Marital status | Single |
| Age at embarkation | 34 |
| Next of kin | Father, Edmund Cook, Whitkuk via Leeds, Yorkshire, England |
| Enlistment date | 17 August 1915 |
| Date of enlistment from Nominal Roll | 17 August 1914 |
| Rank on enlistment | Acting Corporal |
| Unit name | 29th Battalion, 2nd Reinforcement |
| AWM Embarkation Roll number | 23/46/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A64 Demosthenes on 29 October 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 29th Battalion |
| Fate | Returned to Australia 27 September 1917 |
| Miscellaneous details (Nominal Roll) | *Noted COOK Harry Arml NR |