| Regimental number | 2018 |
| Religion | Presbyterian |
| Occupation | Station hand |
| Address | Port Hedland, Western Australia |
| Marital status | Single |
| Age at embarkation | 35 |
| Next of kin | Father, Henry Jacob Paul de Marchi, Wedderburn, Victoria |
| Enlistment date | 29 November 1915 |
| Rank on enlistment | Private |
| Unit name | 10th Light Horse Regiment, 14th Reinforcement |
| AWM Embarkation Roll number | 10/15/2 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT A69 Warilda on 16 February 1916 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 10th Field Artillery Brigade |
| Fate | Returned to Australia 21 July 1918 |
| Family/military connections | Brothers: 2384 Pte Alexander DE MARCHI, 1st Light Horse Regiment, returned to Australia, 24 July 1919; 1529 Pte Harry Cuthbert DE MARCHI, 28th Bn, returned to Australia, 2 January 1919. |