| Father | John Williams Medlock (1803 - 1882) |
| Mother | Sarah Jemison Ware (1807 - 1883) |
| Sibling | Thomas Landrum Deloney Medlock (1823 - ) |
| Sibling | Susannah Eliza Medlock (1825 - ) |
| Sibling | James Isham Medlock (1828 - ) |
| Sibling | John Oliver Medlock (1830 - ) |
| Sibling | Robert Medlock (1832 - ) |
| Sibling | Martha Margaret Ann Medlock (1835 - 1893) |
| Sibling | Eli Wren Medlock (1839 - ) |
| Sibling | Sarah Jemison Medlock (1841 - ) |
| Sibling | Caroline Medlock (1843 - ) |
| Sibling | Georgia Ann Medlock (1845 - ) |
| Sibling | Zachry Taylor Medlock (1848 - ) |
| Sibling | Clark Smith Medlock (1850 - ) |