__
                                            |  
                       _Thomas BULL ________|
                      | (1700 - 1767)       |
                      |                     |__
                      |                        
 _Thomas BULL ________|
| (1720 - 1776) m 1754|
|                     |                      __
|                     |                     |  
|                     |_____________________|
|                                           |
|                                           |__
|                                              
|
|--Thomas BULL 
|  (1750 - ....)
|                                            __
|                                           |  
|                      _____________________|
|                     |                     |
|                     |                     |__
|                     |                        
|_Keziah KNIGHT ______|
  (1720 - 1776) m 1754|
                      |                      __
                      |                     |  
                      |_____________________|
                                            |
                                            |__