Institution
Pennsylvania State University
61
State Library of Pennsylvania
49
West Virginia University
19
Commonwealth University of Pennsylvania
18
Temple University
8
Philadelphia Museum of Art
7
Rutgers University
5
University of Pittsburgh
4
Pennsylvania Western University
3
Villanova University
3
Haverford College
2
New York University
2
Bryn Mawr College
1
Duquesne University
1
Franklin and Marshall College
1
Marshall University
1
Montclair State University
1
Muhlenberg College
1
Point Park University
1
Swarthmore College
1
The New School
1