+--William ALEXANDER 
      +--Alexander ALEXANDER  (1545-1581)
      |  +--Marion COUTTIE 
   +--William ALEXANDER, 1ST EARL OF STERLING  (1580-21 FEB 1640)
   |  |  +--Gilbert GRAHAM  (1521-24 APR 1573)
   |  +--Marion GRAHAM  (1525-1567)
   |     |  +--John KINCAID #  (1495-)
   |     +--Lady Helen KINCAID  (1511-1573)
   |        +--Margaret BELLENTYNE  (1500-)
+--John ALEXANDER  (1603-11 DEC 1696)
|  |  +--Sir William ERSKINE  (1555-12 FEB 1639)
|  +--Janet ERSKINE, LADY STIRLING  (1567-10 MAY 1649)
|     +--Joanna ERSKINE  (1550-1630)
George ALEXANDER  (1620-5 MAY 1703)
+--Agnes Elizabeth GRAHAM  (1597-1677)