| Father | Posey Johnston (1796 - 1859) |
| Mother | Prudence Houston (1795 - 1871) |
| Sibling | Amanda Prudence Johnston (1838 - 1914) |
| Sibling | Frances Manervy Johnston (1819 - 1830) |
| Sibling | Johnston (1820 - ) |
| Sibling | Elizabeth Aubrey Johnston (1822 - 1875) |
| Sibling | William Robertson Johnston (1823 - 1838) |
| Sibling | Mary Margaret Johnston (1826 - 1885) |
| Sibling | Lucinda Ray Johnston (1828 - 1896) |
| Sibling | Martha Elizabeth Johnson (1830 - 1861) |
| Sibling | Martha Ann Johnston (1831 - 1870) |
| Sibling | Posey Carey Johnson (1833 - 1898) |
| Sibling | Franklin Milton Kisler (1835 - 1899) |
| Sibling | Samuel J. Johnson (1841 - 1864) |