| Father | James Laird Robertson (1826 - ) |
| Mother | Letitia Smith Hamilton (1831 - 1901) |
| Sibling | Catherine Robertson (1851 - 1905) |
| Sibling | Jean Robertson (1853 - ) |
| Sibling | Janet Robertson (1855 - 1857) |
| Sibling | James Robertson (1857 - ) |
| Sibling | John Archibald Robertson (1859 - ) |
| Sibling | Ann Robertson (1861 - 1864) |
| Sibling | Elisabeth Robertson (1863 - ) |
| Sibling | Archibald Robertson (1866 - ) |
| Sibling | Agnes Robertson (1868 - ) |
| Sibling | Letitia Robertson (1870 - 1879) |
| Sibling | Marion Robertson (1872 - 1875) |
| Sibling | William Robertson (1876 - ) |