Individual Details
Living
( - )
Families
| Father | John Riddiford JOHNSTONE ( - ) |
| Mother | Margaret Jane Spratt ( - ) |
| Sibling | George Laurence JOHNSTONE (1889 - ) |
| Sibling | Hugh Thomas Graham JOHNSTONE (1893 - 1894) |
| Sibling | John Spratt JOHNSTONE (1894 - 1956) |
| Sibling | Janet Graham JOHNSTONE (1896 - 1984) |
| Sibling | Robert Bruce JOHNSTONE (1896 - ) |
| Sibling | Living |
| Sibling | Percival Louis JOHNSTONE (1903 - 1951) |
| Sibling | Margaret Rose JOHNSTONE (1905 - ) |