Institution
West Virginia University
460
Pennsylvania State University
32
Bucknell University
25
Temple University
16
State Library of Pennsylvania
13
Villanova University
12
Lehigh University
10
Rutgers University
10
University of Pittsburgh
6
Carnegie Mellon University
4
Muhlenberg College
3
University of Pennsylvania
3
Drexel University
2
Indiana University of Pennsylvania
2
Marshall University
2
Millersville University
2
Montclair State University
2
New York University
2
Commonwealth University of Pennsylvania
1
Gettysburg College
1
Pennsylvania Western University
1
Rowan University
1
West Liberty University
1
Widener University
1