+--Samuel Morison  (1671-29 SEP 1757)
      |  +--  
   +--Samuel Morrison  (13 Mar 1727-15 Mar 1775)
   |  +--Margaret Henry  (1685-30 APR 1774)
+--David Morrison  (27 AUG 1763-8 DEC 1832)
|  |  +--Randal Alexander 
|  |  |  +--  
|  +--Isabel Alexander  (16 FEB 1721/22-AFT 1776)
|     +-- Janet 
Martha Morrison  (1 APR 1792-FEB 1864)
+--Mary Kimball