+--Joshua Merrill 
+--Abraham Dow Merrill  (7 MAR 1796-29 APR 1878)
Jacob S. Merrill  (17 OCT 1821-)
|           +--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)
+--Nancy Morrison  (17 AUG 1796-29 JAN 1860)
   +--Eunice Dow  (20 OCT 1770-7 FEB 1854)