+--John Morison  (1628-16 FEB 1736)
         +--James Morison  (1675-15 MAR 1756)
         |  +--Wife One 
      +--Samuel Morison  (1704-11 FEB 1776)
      |  +--Mary Wallace 
   +--Robert Morrison  (6 FEB 1758-APR 1808)
   |  |  +--Samuel Alison 
   |  +--Martha Alison  (31 MAR 1720-3 DEC 1761)
+--Asa Morrison  (10 FEB 1795-3 JUN 1871)
|  +--Eunice Dow  (20 OCT 1770-7 FEB 1854)
Nancy Morrison  (22 AUG 1823-5 MAY 1848)
+--Lydia Allen  (1800-28 JAN 1828)