_Roger ASTON ________
                                            |                     
                       _Robert ASTON _______|
                      |                     |
                      |                     |_Joyce FREVILLE _____+
                      |                                           
 _John ASTON _________|
|                     |
|                     |                      _____________________
|                     |                     |                     
|                     |_Isabel BRERETON ____|
|                                           |
|                                           |_____________________
|                                                                 
|
|--Margaret ASTON 
|  
|                                            _____________________
|                                           |                     
|                      _____________________|
|                     |                     |
|                     |                     |_____________________
|                     |                                           
|_Elizabeth DELVES ___|
                      |
                      |                      _____________________
                      |                     |                     
                      |_____________________|
                                            |
                                            |_____________________