+--William MARCHMENT  (ABT 1725-AFT 1788)
+--Charles MARCHMENT  (1750-1806)
|  +--_______ RILEY  (12 JUL 1701-1744)
William Riley MARCHMAN  (2 JUL 1786-25 OCT 1872)
+--Tabitha BARNES  (1743-28 JUN 1834)