__
                                                                    |  
                                               _John DUCK __________|__
                                              | (1760 - 1840)          
                         _Jonathan DUCK ______|
                        | (1788 - 1885)       |
                        |                     |                      __
                        |                     |                     |  
                        |                     |_____________________|__
                        |                                              
 _Charles Reaford DUCK _|
| (1833 - 1907)         |
|                       |                                            __
|                       |                                           |  
|                       |                      _____________________|__
|                       |                     |                        
|                       |_Bathsheba WOODWARD _|
|                         (1793 - 1872)       |
|                                             |                      __
|                                             |                     |  
|                                             |_____________________|__
|                                                                      
|
|--Lafayette DUCK 
|  (1854 - ....)
|                                                                    __
|                                                                   |  
|                                              _____________________|__
|                                             |                        
|                        _____________________|
|                       |                     |
|                       |                     |                      __
|                       |                     |                     |  
|                       |                     |_____________________|__
|                       |                                              
|_? MCCLANAHAN _________|
                        |
                        |                                            __
                        |                                           |  
                        |                      _____________________|__
                        |                     |                        
                        |_____________________|
                                              |
                                              |                      __
                                              |                     |  
                                              |_____________________|__