| Regimental number | 9128 |
| Place of birth | Sydney New South Wales |
| Other Names | William Dellacourt |
| Religion | Church of England |
| Occupation | Laboratory assistant |
| Address | Louisa Annesley Street, Leichhardt |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Mother, Mrs Louisa Bagnall, Annesley Street, Leichhardt |
| Enlistment date | 1 November 1915 |
| Rank on enlistment | Private |
| Unit name | Dermatological Hospital |
| AWM Embarkation Roll number | 26/69/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A61 Kanowna on 22 December 1915 |
| Rank from Nominal Roll | Lance Corporal |
| Unit from Nominal Roll | 1st Australian Dermatological Hospital |
| Fate | Returned to Australia 18 July 1919 |