_Hugh WILLIAMSON ____
                                                | (1720 - 1813)       
                       _Alden WILLIAMSON Sr.____|
                      | (1750 - 1816) m 1790    |
                      |                         |_Elizabeth STEWART __
                      |                           (1718 - ....)       
 _Elias WILLIAMSON ___|
| (1809 - 1881) m 1828|
|                     |                          _____________________
|                     |                         |                     
|                     |_Mary Elizabeth JACKSON _|
|                       (1772 - ....) m 1790    |
|                                               |_____________________
|                                                                     
|
|--James H. WILLIAMSON 
|  (1835 - ....)
|                                                _____________________
|                                               |                     
|                      _________________________|
|                     |                         |
|                     |                         |_____________________
|                     |                                               
|_Malinda MARCUM _____|
  (1814 - 1880) m 1828|
                      |                          _____________________
                      |                         |                     
                      |_________________________|
                                                |
                                                |_____________________