__
                                            |  
                       _Daniel HAMMETT _____|
                      | (1777 - 1860)       |
                      |                     |__
                      |                        
 _Harrington HAMMETT _|
| (1808 - 1870) m 1854|
|                     |                      __
|                     |                     |  
|                     |_Mary VANDIVER ______|
|                       (1779 - 1860)       |
|                                           |__
|                                              
|
|--Martha HAMMETT 
|  (1859 - ....)
|                                            __
|                                           |  
|                      _____________________|
|                     |                     |
|                     |                     |__
|                     |                        
|_Sarah THOMPKINS ____|
  (1821 - 1870) m 1854|
                      |                      __
                      |                     |  
                      |_____________________|
                                            |
                                            |__