| Father | William Hartshorn Hankinson (1823 - 1895) |
| Mother | Sophia Ann McConnell (1823 - 1899) |
| Sibling | Lewis Arthur Hankinson (1870 - 1917) |
| Sibling | Kenneth Herbert Hankinson (1863 - 1939) |
| Sibling | John Calvin Hankinson (1856 - 1933) |
| Sibling | Lorenzo Dow Hankinson (1858 - 1943) |
| Sibling | Kenneth Hankinson (1862 - ) |
| Sibling | Lewis A Hankinson (1867 - ) |
| Sibling | Emily Jane Hankinson (1863 - 1927) |
| Sibling | Francis Albert Hankinson (1849 - 1910) |
| Sibling | Louis Arthur Hankinson (1870 - 1917) |
| Sibling | Hannah M Hankinson (1854 - 1934) |
| Sibling | Charles William Hankinson (1851 - 1930) |
| Sibling | William O Hankinson (1853 - ) |