| Father | Joseph Langdon (1740 - 1812) |
| Mother | Ruth Hooker (1744 - 1803) |
| Sibling | Amon Langdon (1763 - 1794) |
| Sibling | Joel Langdon (1765 - 1838) |
| Sibling | Isaac Lomis Lankton (1766 - ) |
| Sibling | Susannah "Susan" Langdon (1768 - 1843) |
| Sibling | Abigail Hooker Langdon (1772 - 1775) |
| Sibling | Samuel Langdon (1775 - 1846) |
| Sibling | Reuben Langdon (1777 - 1849) |
| Sibling | Abigail Mitty Langdon (1780 - 1865) |
| Sibling | James Hooker Langdon (1783 - 1831) |
| Sibling | Edmund Langdon (1785 - 1869) |
| Sibling | Sylvester Langdon (1787 - 1823) |
| Sibling | Lucy Langdon (1789 - 1883) |
| Sibling | Abigail Hooker Langdon (1791 - 1793) |
| Sibling | Ruthy Hooker Langdon (1791 - 1849) |