Institution
Pennsylvania State University
166
West Virginia University
91
Lehigh University
66
Rutgers University
51
University of Pennsylvania
49
State Library of Pennsylvania
39
Villanova University
31
University of Pittsburgh
27
Bucknell University
25
Temple University
23
Commonwealth University of Pennsylvania
14
Drexel University
11
Carnegie Mellon University
10
Marshall University
10
Lafayette College
9
Montclair State University
6
Dickinson College
5
Indiana University of Pennsylvania
4
Muhlenberg College
4
Widener University
4
Bryn Mawr College
3
Franklin and Marshall College
2
New York University
2
Rowan University
2
Susquehanna University
2
West Chester University
2
Duquesne University
1
Haverford College
1
King's College
1
Lycoming College
1
Millersville University
1
Moravian University
1
Pennsylvania Western University
1
Robert Morris University
1
Saint Joseph's University
1
Slippery Rock University
1
Thomas Jefferson University
1
West Liberty University
1