__
                                            |  
                       _Samuel W. MERS _____|
                      | (1795 - 1862)       |
                      |                     |__
                      |                        
 _John Conway MERS ___|
| (1823 - 1901)       |
|                     |                      __
|                     |                     |  
|                     |_Christeny PLANK ____|
|                       (1795 - 1889)       |
|                                           |__
|                                              
|
|--James Monroe MERS 
|  (1847 - 1926)
|                                            __
|                                           |  
|                      _____________________|
|                     |                     |
|                     |                     |__
|                     |                        
|_Eliza Jane TRIBBY __|
  (1824 - 1897)       |
                      |                      __
                      |                     |  
                      |_____________________|
                                            |
                                            |__