| Regimental number | 1219 |
| Place of birth | Daylesford, Victoria |
| Other Names | Mathesin Valentine |
| Religion | Presbyterian |
| Occupation | Clerk |
| Address | Traralgon, Victoria |
| Marital status | Single |
| Age at embarkation | 31 |
| Next of kin | Father, E F Capon, Euston Road, Oakleigh, Victoria |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Place of enlistment | Melbourne, Victoria |
| Rank on enlistment | Private |
| Unit name | 13th Light Horse Regiment, 6th Reinforcement |
| AWM Embarkation Roll number | 10/18/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A38 Ulysses on |
| Rank from Nominal Roll | Sergeant |
| Unit from Nominal Roll | 2nd Division Ammunition Column |
| Fate | Returned to Australia |
| Family/military connections | Sister: Staff NurseMargaret CAPON, Australian Army Nursing Service, returned to Australia, 10 July 1917. |
| Other details |
Medals: 1914-15 Star, British War Medal, Victory Medal |