| Father | Henry Austin Jr. (1760 - 1809) |
| Mother | Nancy Ann Watts (1770 - 1832) |
| Sibling | Sarah Austin (1790 - ) |
| Sibling | David Austin (1791 - 1853) |
| Sibling | Elizabeth "Betsey" Austin (1792 - ) |
| Sibling | Garrett Austin (1794 - 1839) |
| Sibling | Frances "Fanny" Austin (1798 - ) |
| Sibling | Willis Austin (1799 - 1877) |
| Sibling | Richard Durrett Austin (1800 - ) |
| Sibling | Mildred "Milly" Austin (1801 - 1884) |
| Sibling | James Walker Austin (1804 - 1865) |
| Sibling | Nancy Ann Austin (1806 - 1872) |
| Sibling | Caroline Harrison "Callie" Austin (1807 - 1865) |
| Sibling | Henry Tazwell Austin (1809 - 1864) |