+--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)
      +--James R Morrison  (22 Mar 1781-15 OCT 1841)
      |  +--Mary Roach  (WFT Est 1736-1760-WFT Est 1779-1849)
   +--John Morrison  (10 SEP 1803-8 AUG 1837)
   |  +--Martha Polton  (11 Aug 1783-14 JUL 1870)
+--Isaac Morrison  (1827-)
|  +--Mehitable Tibbetts 
Clara Morrison 
+--Anna Otto