+--Samuel Morison  (1671-29 SEP 1757)
      |  +--  
   +--John Morrison  (1721-1776)
   |  +--Margaret Henry  (1685-30 APR 1774)
+--David Morrison  (29 AUG 1750-1812)
|  +--Elizabeth Alexander  (ABT 1721-ABT 1811)
Hannah Morrison  (29 JUL 1785-12 DEC 1858)
+--Hannah Whitaker  (-1788)