| Father | Daniel Somerby (1728 - 1785) |
| Mother | Mary Bartlett (1731 - 1821) |
| Sibling | Hannah Somerby (1753 - 1799) |
| Sibling | Eunice Somerby (1754 - 1830) |
| Sibling | Joseph Somerby (1755 - 1800) |
| Sibling | Daniel Somerby (1757 - 1829) |
| Sibling | Cutting Bartlett Somerby (1758 - ) |
| Sibling | Moses Somerby (1760 - 1844) |
| Sibling | Mary Somerby (1761 - 1786) |
| Sibling | Sarah Somerby (1763 - 1837) |
| Sibling | Lois Somerby (1766 - 1827) |
| Sibling | Cutting Moody Somerby (1768 - ) |
| Sibling | Elizabeth Somerby (1770 - 1835) |
| Sibling | Judith Somerby (1771 - 1822) |
| Sibling | Thomas Somerby (1776 - 1854) |