+--Samuel Morison  (1671-29 SEP 1757)
      |  +--  
   +--John Morrison  (1721-1776)
   |  +--Margaret Henry  (1685-30 APR 1774)
+--Samuel Morrison  (5 MAR 1751/52-1802)
|  +--Elizabeth Alexander  (ABT 1721-ABT 1811)
Elizabeth Morrison  (1788-1802)
+--Mary Roach  (WFT Est 1736-1760-WFT Est 1779-1849)