Family: Thomas Johnston / Marcy Bryan (F1864)
Robert Bruce Johnston (1749-1821) 
|
Margaret McClanahan (1757-1841)
|
 | Captain William Henry Johnston (1776-1850)  |
| Isaac Johnston (1785- ) |
| Margaret Johnston (1780- ) |
| Nancy Johnston (1778- ) |
| Marcy Bryan (1774- ) |
| Thomas Johnston (1783- )
|
