| Regimental number | 10149 |
| Place of birth | Lewisham New South Wales |
| Religion | Roman Catholic |
| Occupation | Clerk |
| Address | 'Locksley', The Avenue, Petersham, New South Wales |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Father, William Richard Darby, 'Locksley', The Avenue, Petersham, New South Wales |
| Enlistment date | 6 September 1915 |
| Rank on enlistment | Gunner |
| Unit name | Reinforcement 2 |
| AWM Embarkation Roll number | 13/33/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A35 Berrima on 17 December 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | Australian General Base Depot |
| Fate | Returned to Australia 11 May 1919 |
| Miscellaneous details (Nominal Roll) | *Spelt William Stanislans Darby on NR |
| Family/military connections | Brother: 10150 Pte James Butler DARBY, 4th Field Artillery Brigade, died of wounds, 1 January 1918. |
