Author
Beardsley, Laura E.
2
Croushore, Jeffrey S.
2
Hahner, David P.
2
Preisler, Julian H.,
2
Drake Well Museum (Titusville, Pa.)
1
Edgcumbe, Stephen J.
1
Herman, Andrew Mark
1
Hutchins, Amey A.
1
Kraus, Michael G.
1
Morrow, Dixie
1
Neville, David M.
1
O'Boyle, Shaun
1
Palm, Ronn
1
Richards, John Stuart
1
Ries, Linda A.
1
Schroeder, Patrick A. 1968-
1
Stewart, Anne W.
1
Turner, Kenneth C.
1
University of Pennsylvania. Archives
1