| Regimental number | 3549 |
| Place of birth | Bordertown, South Australia |
| Religion | Methodist |
| Occupation | Colt breaker |
| Address | Mundulla, South Australia |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Mother, Mrs Mary Riches, Mundulla, South Australia |
| Enlistment date | |
| Place of enlistment | Bordertown, South Australia |
| Rank on enlistment | Private |
| Unit name | 9th Light Horse Regiment, 31st Reinforcement |
| AWM Embarkation Roll number | 10/14/5 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A73 Commonwealth on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 9th Light Horse Regiment |
| Fate | Returned to Australia |
| Discharge date | |
| Family/military connections | Brother: 3259 Pte Seaman Robert RICHES, 27th Bn, returned to Australia, 13 April 1919. |
| Other details |
War service: Egypt, Palestine Commenced return to Australia from Kantara on board HT 'Oxfordshire', 10 July 1919; discharged (termination of period of enlistment), Adelaide, 3 September 1919. Medals: British War Medal, Victory Medal |
| Sources | NAA: B2455, RICHES Ernest Roy |