_____________________
                                            |                     
                       _____________________|
                      |                     |
                      |                     |_____________________
                      |                                           
 _John OLIVER ________|
|                     |
|                     |                      _____________________
|                     |                     |                     
|                     |_____________________|
|                                           |
|                                           |_____________________
|                                                                 
|
|--Mary OLIVER 
|  
|                                            _Richard LOWLE ______
|                                           |                     
|                      _Percival LOWELL ____|
|                     |                     |
|                     |                     |_Christian PERCIVAL _+
|                     |                                           
|_Joanna LOWELL ______|
                      |
                      |                      _____________________
                      |                     |                     
                      |_Rebecca LNU ________|
                                            |
                                            |_____________________