| Father | William Laing THORBURN (1855 - 1931) |
| Mother | Elizabeth (2) OTTO (1860 - 1933) |
| Sibling | Ellen THORBURN (1879 - 1956) |
| Sibling | William Lang THORBURN (1880 - 1954) |
| Sibling | Andrew Otto THORBURN (1882 - 1958) |
| Sibling | Albert Charles THORBURN (1884 - 1884) |
| Sibling | George Ernest THORBURN (1885 - 1928) |
| Sibling | Frederick Charles THORBURN (1887 - 1904) |
| Sibling | Marion Isabel THORBURN (1888 - 1952) |
| Sibling | Robert Leslie THORBURN (1892 - 1893) |
| Sibling | Archibald Louis THORBURN (1894 - ) |
| Sibling | Alice Mytle THORBURN (1895 - ) |
| Sibling | Dulcie Beryl THORBURN (1900 - ) |