+--John Barker  (1752-25 JUL 1819)
+--John Barker  (28 NOV 1804-)
|  |     +--Robert Smith 
|  |  +--William Smith  (1723-31 JAN 1808)
|  +--Hannah Smith  (18 MAY 1761-28 AUG 1813)
|     |     +--John Morison  (1628-16 FEB 1736)
|     |  +--John Morison  (1678-14 JUN 1776)
|     |  |  +--Wife One 
|     +--Elizabeth Morison  (11 JUN 1723-15 SEP 1808)
|        +--Margaret Wallace  (1687-18 APR 1769)
Harriet Amelia Barker  (20 JUN 1846-27 APR 1847)
|  +--John Grey 
+--Harriet Eliza Grey