| Regimental number | 6317 |
| Place of birth | Braidwood New South Wales |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Address | Coombell Post Office, Coombell via Casino, New South Wales |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Brother, Cornelius James Dempsey, Emu Flat PO, Oranmeir via Braidwood, New South Wales |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 26th Battalion, 18th Reinforcement |
| AWM Embarkation Roll number | 23/43/4 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A64 Demosthenes on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 26th Battalion |
| Fate | Died of wounds |
| Age at death from cemetery records | 22 |
| Place of burial | Mont Huon military Cemetery (Plot VI, Row O, Grave No. 12B), Le Treport, France |
| Panel number, Roll of Honour, Australian War Memorial | 110 |
| Miscellaneous information from cemetery records | Parents: Adopted sone of Denis and Alice DEMPSEY. Native of Krawarre, New South Wales |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |