+--David GRAHAM  (-Abt 1800)
      +--Andrew GRAHAM  (Abt 1753-1821)
   +--Matthew GRAHAM  (17 Jan 1780- 8 May 1854)
   |  +--Margaret COULTER  (-1792/1796)
+--David GRAHAM  (12 Apr 1821-17 Jan 1894)
|  +--Jennette (Janet) WILSON  (12 May 1783- 2 Jun 1843)
Ralph Walter GRAHAM  (20 Apr 1859-20 Jan 1861)
|  +--John BROWN  (-1871)
+--Elizabeth BROWN  ( 8 Jul 1828-1891)
   +--Elizabeth PORTER