John Clark 1840-1900 Ridpath
(18)
John Peterson/ Roberta Carter Clark (ILT)
(6)
Frederick N. Martin/ John Greer Clark
(5)
John Bellamy Foster/ Brett Clark/ Richard York
(4)
Paul Davis (EDT)/ Gary Harrison (EDT)/ David M. Johnson (EDT)/ Patricia Clark Smith (EDT)/ John F. Crawford (EDT)
(4)
John A. Clark/ Brian F. Schaffner
(3)