+--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)
Davenport A. Morrison  (23 JUN 1823-22 Sep 1896)
+--Martha Polton  (11 Aug 1783-14 JUL 1870)