_______________________
                                              |                       
                        ______________________|
                       |                      |
                       |                      |_______________________
                       |                                              
 _Joseph S. MACKEY ____|
| (1847 - ....) m 1873 |
|                      |                       _______________________
|                      |                      |                       
|                      |______________________|
|                                             |
|                                             |_______________________
|                                                                     
|
|--William MACKEY 
|  (1875 - ....)
|                                              _John MCCLURE _________
|                                             | (1783 - 1855)         
|                       _Robert MCCLURE ______|
|                      | (1824 - 1901) m 1848 |
|                      |                      |_Nancy Mary MCMILLIAN _
|                      |                        (1793 - 1883)         
|_Amanda Jane MCCLURE _|
  (1855 - 1935) m 1873 |
                       |                       _Henry Ballard COBB ___+
                       |                      | (1792 - ....) m 1814  
                       |_Hannah Abigail COBB _|
                         (1822 - 1882) m 1848 |
                                              |_Abigail DIXON ________
                                                (1797 - ....) m 1814