| Regimental number | 2584 |
| Place of birth | Perth, Western Australia |
| School | Carnarvon and Moora State Schools, Western Australia |
| Religion | Roman Catholic |
| Occupation | Farm hand |
| Address | 'Yarralilea', Picton, Western Australia |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, Charles Percival Johnstone, Customs House, Fremantle, Western Australia |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 43rd Battalion, 5th Reinforcement |
| AWM Embarkation Roll number | 23/60/2 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT A8 Argyllshire on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 43rd Battalion |
| Fate | Died of wounds |
| Miscellaneous details (Nominal Roll) | *Spelt Harvey Johnstone on NR |
| Place of death or wounding | Zonnebeke, Belgium |
| Age at death | 19 |
| Place of burial | Lijssenthoek Military Cemetery (Plot XXV, Row C, Grave No. 2), Belgium |
| Panel number, Roll of Honour, Australian War Memorial | 136 |
| Miscellaneous information from cemetery records | Parents: Charles and Martha JOHNSTONE, Customs House, Fremantle, Western Australia. Native of Perth, Western Australia |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |