| Regimental number | 4537 |
| Place of birth | Hackney South Australia |
| Religion | Methodist |
| Occupation | Gardener |
| Address | Toowoomba, Queensland |
| Marital status | Single |
| Age at embarkation | 27 |
| Next of kin | Father, Henry Roach, Burra, South Australia |
| Enlistment date | 10 December 1915 |
| Rank on enlistment | Private |
| Unit name | 25th Battalion, 11th Reinforcement |
| AWM Embarkation Roll number | 23/42/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT Star of Victoria on 31 March 1916 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 25th Battalion |
| Fate | Returned to Australia 20/11/1191 |
| Miscellaneous details (Nominal Roll) | *Spelt Harry Keith Roach on NR |