| Regimental number | 857 |
| Place of birth | Claremont, Western Australia |
| Religion | Methodist |
| Occupation | Labourer |
| Address | c/o G W Caporn, Goldsworthy Road, Claremont, Western Australia |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, George William Caporn, Goldsworthy Road, Claremont, Western Australia |
| Enlistment date | 8 January 1915 |
| Rank on enlistment | Private |
| Unit name | 10th Light Horse Regiment, 4th Reinforcement |
| AWM Embarkation Roll number | 10/15/2 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT A8 Argyllshire on 19 April 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 10th Light Horse Regiment |
| Fate | Returned to Australia 8 March 1917 |
| Family/military connections | Brother: 858 Pte George William CAPORN, 10th Light Horse Regiment, returned to Australia, 29 July 1915. |
