__
                                            |  
                       _Thomas BUCHANAN ____|
                      | (1500 - ....)       |
                      |                     |__
                      |                        
 _Thomas BUCHANAN ____|
| (1522 - 1590) m 1535|
|                     |                      __
|                     |                     |  
|                     |_Margaret LNU _______|
|                       (1500 - 1530)       |
|                                           |__
|                                              
|
|--Janet BUCHANAN 
|  (1555 - 1626)
|                                            __
|                                           |  
|                      _____________________|
|                     |                     |
|                     |                     |__
|                     |                        
|_Janet DOUGLAS ______|
  (1520 - 1595) m 1535|
                      |                      __
                      |                     |  
                      |_____________________|
                                            |
                                            |__