mattjake on Family Tree Circles

Looking for information on the Clarks of
Greene County, PA in the early 1800's.
William married ? and had 8 children: only
3 are known to us; William P. Clark who married
Susan Crile, Elizabeth who married Samuel Coleman,
and Hezikiah who moved to Indiana and married
Catherine Miller.
William Clark is said to have founded the town of
Clarksville with his brother, possible Samuel..?