_____________________
                                            |                     
                       _____________________|
                      |                     |
                      |                     |_____________________
                      |                                           
 _Robert DOUGLAS _____|
| (.... - 1706) m 1688|
|                     |                      _____________________
|                     |                     |                     
|                     |_____________________|
|                                           |
|                                           |_____________________
|                                                                 
|
|--Margaret DOUGLAS 
|  (1694 - 1784)
|                                            _____________________
|                                           |                     
|                      _John BALFOUR _______|
|                     | (1623 - 1697) m 1649|
|                     |                     |_____________________
|                     |                                           
|_Susannah BALFOUR ___|
  (1667 - 1751) m 1688|
                      |                      _William BALFOUR ____
                      |                     | (1580 - 1660)       
                      |_Isabel BALFOUR _____|
                        (1628 - ....) m 1649|
                                            |_____________________