+--John Morison  (1628-16 FEB 1736)
         +--John Morison  (1678-14 JUN 1776)
         |  +--Wife One 
      +--Thomas Morison  (1710-23 NOV 1797)
      |  +--Margaret Wallace  (1687-18 APR 1769)
   +--Robert Morison  (29 NOV 1744-13 FEB 1826)
   |  +--Mary Smith  (1712-29 DEC 1799)
+--Robert Morison  (8 MAY 1784-25 APR 1861)
|  +--Elizabeth Holmes  (23 JUN 1754-17 MAY 1808)
Elizabeth A. Morison  (23 DEC 1814-)
|  +--Josiah C. Spring 
+--Betsey Spring  (28 JUN 1787-)