| Regimental number | 1846 |
| Place of birth | Plaiston England |
| Other Names | Walter Colilile Darby |
| Religion | Presbyterian |
| Occupation | Salesman |
| Address | Stuart Road, Dulwich, South Australia |
| Marital status | Married |
| Age at embarkation | 34 |
| Next of kin | Wife, Mrs. Ada Rose Darby, Stuart Road, Dulwich, South Australia |
| Enlistment date | 29 September 1915 |
| Rank on enlistment | Private |
| Unit name | 9th Light Horse Regiment, 13th Reinforcement |
| AWM Embarkation Roll number | 10/14/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A19 Afric on 5 January 1916 |
| Rank from Nominal Roll | Sergeant |
| Unit from Nominal Roll | 5th Field Artillery Brigade |
| Fate | Effective abroad (still overseas) |