+--Robert Morrison 
      +--William Morrison  (30 NOV 1726-28 FEB 1778)
      |  +-- Elizabeth 
   +--Robert Morrison  (JAN 1747-10 JUN 1802)
   |  +--Jane Rogers  (-AFT 1794)
+--William Morrison  (9 APR 1788-26 JUN 1873)
|  |  +--Adonijah Luce 
|  +--Catherine Luce  (27 OCT 1747-)
|     +--Abigail Athorn 
Cabot Morrison  (12 AUG 1829-)
|  +--Francis Cabot 
+--Mary Cabot  (2 APR 1789-4 OCT 1841)
   +--Marcia Hodgman