__
                         |  
                       __|
                      |  |
                      |  |__
                      |     
 _David GREER Sr._____|
| (1760 - 1855) m 1787|
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|                     |__|
|                        |
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|                           
|
|--Mary GREER 
|  (1789 - ....)
|                         __
|                        |  
|                      __|
|                     |  |
|                     |  |__
|                     |     
|_Mary MCCOMBS _______|
  (.... - 1803) m 1787|
                      |   __
                      |  |  
                      |__|
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                         |__