+--Nathan Towle  (1772-AFT 1850)
Nathan Towle  (30 MAY 1810-)
|        +--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)
+--Elizabeth Morrison  (28 APR 1775-AFT 1850)
   +--Hannah Whitaker  (-1788)