_John MERCER ________
                                            |                     
                       _Thomas MERCER ______|
                      |                     |
                      |                     |_Lilias ROW _________+
                      |                                           
 _William MERCER _____|
|                     |
|                     |                      _____________________
|                     |                     |                     
|                     |_Isabel SMITH _______|
|                                           |
|                                           |_____________________
|                                                                 
|
|--Hugh MERCER 
|  
|                                            _____________________
|                                           |                     
|                      _____________________|
|                     |                     |
|                     |                     |_____________________
|                     |                                           
|_Ann MUNRO __________|
                      |
                      |                      _____________________
                      |                     |                     
                      |_____________________|
                                            |
                                            |_____________________