| Regimental number | 7822 |
| Place of birth | Coolamon New South Wales |
| Religion | Church of England |
| Occupation | Clerk |
| Address | Wagga Wagga, New South Wales |
| Marital status | Single |
| Age at embarkation | 19 |
| Next of kin | Father, W A Duprez, Police Station, Wagga Wagga, New South Wales |
| Enlistment date | 17 August 1917 |
| Rank on enlistment | Private |
| Unit name | 2nd Battalion, 26th Reinforcement |
| AWM Embarkation Roll number | 23/19/4 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A38 Ulysses on 19 December 1917 |
| Rank from Nominal Roll | Corporal |
| Unit from Nominal Roll | AIF Depots in the United Kingdom |
| Fate | Returned to Australia 22 July 1919 |
| Family/military connections | Brothers: [4362] Lt Arthur Alexander DUPREZ MC, 55th Bn, returned to Australia, 23 June 1919; 934 Lance Corporal Offord William DUPREZ, 7th Light Horse Regiment, died of wounds, 20 September 1916. |
