_Henry COBB _________+
                                            | (1711 - 1772) m 1762
                       _Henry COBB _________|
                      | (1763 - 1808) m 1787|
                      |                     |_Elizabeth ELLIS ____
                      |                        m 1762             
 _Edward COBB ________|
| (1791 - 1876) m 1815|
|                     |                      _Robert CHAPMAN _____
|                     |                     |                     
|                     |_Elizabeth CHAPMAN __|
|                       (1767 - 1824) m 1787|
|                                           |_____________________
|                                                                 
|
|--Frederic Williams COBB 
|  (1820 - ....)
|                                            _____________________
|                                           |                     
|                      _____________________|
|                     |                     |
|                     |                     |_____________________
|                     |                                           
|_Mary Ann WILLIAMS __|
  (1790 - 1871) m 1815|
                      |                      _____________________
                      |                     |                     
                      |_____________________|
                                            |
                                            |_____________________