_____________________
                                            |                     
                       _____________________|
                      |                     |
                      |                     |_____________________
                      |                                           
 _George ABELL _______|
|                     |
|                     |                      _____________________
|                     |                     |                     
|                     |_____________________|
|                                           |
|                                           |_____________________
|                                                                 
|
|--Robert ABELL 
|  
|                                            _George COTTON ______+
|                                           |                     
|                      _Richard COTTON _____|
|                     |                     |
|                     |                     |_Mary ONLEY _________
|                     |                                           
|_Frances COTTON _____|
                      |
                      |                      _____________________
                      |                     |                     
                      |_Mary MAINWARING ____|
                                            |
                                            |_____________________