| Father | Randall Threadgill (1801 - 1866) |
| Mother | Mary Polly Lowthorp (1804 - ) |
| Sibling | Rebecca Threadgill (1822 - 1860) |
| Sibling | Matilda Threadgill (1825 - 1862) |
| Sibling | A. Joshua Threadgill (1827 - 1906) |
| Sibling | Eliner Eleanor Threadgill (1829 - 1833) |
| Sibling | Churchwell Threadgill (1831 - 1903) |
| Sibling | Francis Asbury Threadgill (1833 - 1906) |
| Sibling | Elizabeth D. Threadgill (1836 - 1899) |
| Sibling | John M. Threadgill (1838 - 1878) |
| Sibling | Colen Threadgill (1840 - 1857) |
| Sibling | Pinkerton Randall Threadgill (1841 - 1862) |
| Sibling | Caroline Emma Threadgill (1846 - 1927) |