| Father | John Q. THORNHILL (1616 - 1679) |
| Mother | Everilda WENTWORTH (1629 - 1708) |
| Sibling | Bryan THORNHILL (1649 - 1701) |
| Sibling | Marmaduke THORNHILL (1651 - 1756) |
| Sibling | Everilda THORNHILL (1652 - 1698) |
| Sibling | Elizabeth THORNHILL (1654 - 1654) |
| Sibling | George THORNHILL (1655 - 1687) |
| Sibling | Anne THORNHILL (1655 - 1700) |
| Sibling | Sir Thomas THORNHILL (1658 - 1682) |
| Sibling | Bryant THORNHILL (1676 - 1709) |
| Sibling | William THORNHILL (1677 - 1687) |
| Sibling | Diana Everilda THORNHILL (1680 - 1733) |
| Sibling | Askelfus THORNHILL (1685 - 1700) |
| Sibling | Mary THORNHILL (1686 - 1768) |