_Nehemiah BLAKISTON _
                                            | (1637 - 1693)       
                       _John BLAKISTON _____|
                      | (1670 - 1723)       |
                      |                     |_Elizabeth GERARD ___
                      |                       (1641 - 1716)       
 _Benjamin BLAKISTON _|
| (1713 - 1760)       |
|                     |                      _____________________
|                     |                     |                     
|                     |_Anne GUIBERT _______|
|                       (1670 - 1739)       |
|                                           |_____________________
|                                                                 
|
|--Priscilla BLAKISTON 
|  (1741 - 1812)
|                                            _____________________
|                                           |                     
|                      _____________________|
|                     |                     |
|                     |                     |_____________________
|                     |                                           
|_Sarah JOYCE ________|
  (1722 - 1764)       |
                      |                      _____________________
                      |                     |                     
                      |_____________________|
                                            |
                                            |_____________________