__
                                            |  
                       _John CREWE _________|
                      | (1524 - 1598)       |
                      |                     |__
                      |                        
 _John CREWE _________|
| (1554 - ....)       |
|                     |                      __
|                     |                     |  
|                     |_Alice MAINWARING ___|
|                       (1528 - 1606)       |
|                                           |__
|                                              
|
|--John CREWE 
|  (1607 - ....)
|                                            __
|                                           |  
|                      _____________________|
|                     |                     |
|                     |                     |__
|                     |                        
|_Mary UNKNOWN _______|
  (1557 - ....)       |
                      |                      __
                      |                     |  
                      |_____________________|
                                            |
                                            |__