| Father | John w Snodgrass (1722 - 1790) |
| Mother | Isabella McClanahan (1723 - 1793) |
| Sibling | Joseph Snodgrass (1740 - 1822) |
| Sibling | Elizabeth Snodgrass (1737 - ) |
| Sibling | James Snodgrass (1742 - ) |
| Sibling | Elizabeth Jain Snodgrass (1746 - ) |
| Sibling | Margaret Snodgrass (1748 - ) |
| Sibling | Susan Snodgrass (1748 - ) |
| Sibling | Lauraine Snodgrass (1748 - 1803) |
| Sibling | Robert Snodgrass (1749 - 1780) |
| Sibling | William Snodgrass Jr (1749 - ) |
| Sibling | Elinor Snodgrass (1750 - ) |
| Sibling | William Burl Snodgrass I (1751 - 1832) |
| Sibling | John A. Snodgrass (1754 - 1822) |