| Father | Owen Thomas (1731 - 1769) |
| Sibling | Ann Thomas (1736 - 1741) |
| Sibling | Hester Thomas (1736 - 1742) |
| Sibling | Lewis Thomas (1736 - 1742) |
| Sibling | Henry Thomas (1750 - 1837) |
| Sibling | Joannah Thomas (1752 - ) |
| Sibling | John Mingo John Thomas (1759 - 1846) |
| Sibling | Elizabeth Thomas (1764 - 1851) |
| Sibling | William Billings (1769 - 1821) |
| Sibling | Catherine Thomas (1770 - 1850) |
| Sibling | Joseph Burgess Burchet Thomas (1809 - 1873) |
| Sibling | George Thomas ( - ) |
| Sibling | George Thomas ( - ) |
| Sibling | William Thomas ( - ) |
| Sibling | William Thomas ( - ) |