_____________________
                                            |                     
                       _____________________|
                      |                     |
                      |                     |_____________________
                      |                                           
 _Richard LOWLE ______|
|                     |
|                     |                      _____________________
|                     |                     |                     
|                     |_____________________|
|                                           |
|                                           |_____________________
|                                                                 
|
|--Percival LOWELL 
|  
|                                            _____________________
|                                           |                     
|                      _Edmund PERCIVAL ____|
|                     |                     |
|                     |                     |_____________________
|                     |                                           
|_Christian PERCIVAL _|
                      |
                      |                      _Roger YORKE ________
                      |                     |                     
                      |_Elizabeth YORKE ____|
                                            |
                                            |_Eleanor LUTTRELL ___+