+--Joshua Merrill 
      +--Abraham Dow Merrill  (7 MAR 1796-29 APR 1878)
   +--Rufus S. Merrill  (5 JUL 1833-)
   |  |           +--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)
+--Charles S. Merrill  (27 MAR 1853-)
|  +--Mary A. Stoddard 
Mary Augusta Merrill 
+--Emma J. Abbott