+--Hugh Morrison  (ABT 1704-1765)
         |  +--  
      +--John Morrison  (23 Feb 1728-1 Aug 1810)
      |  +--Martha McCrellis  (1703-3 JAN 1772)
   +--David Morrison  (4 Nov 1752-28 Jun 1837)
   |  +--Ann Thompson  (1732-10 NOV 1808)
+--David Morrison  (1780-12 February 1845)
|  |  +--Hubbell Wells 
|  +--Lucy Wells  (08 May 1761-18 October 1822)
|     +--Zerniah Wells 
Erastus Clark Morrison  (1828-9 Oct 1863)
+--Sarah Smith  (4 March 1794-7 December 1877)