+--John Morison  (1628-16 FEB 1736)
      +--Samuel Morison  (1710-21 JUN 1802)
      |  +--Jeanette Steele 
   +--William Morison  (1751-1833)
   |  |  +--Samuel Alison 
   |  +--Janet Alison  (1712-8 JAN 1800)
+--Calvin Morison  (29 JAN 1803-25 APR 1854)
|  +--Margaret Thompson  (-27 DEC 1864)
William C. Morison  (14 DEC 1828-)
+--Abigail Thompson  (12 FEB 1807-)