Institution
University of Pennsylvania
9
Pennsylvania State University
4
Rutgers University
3
State Library of Pennsylvania
3
Temple University
3
Commonwealth University of Pennsylvania
2
New York University
2
Swarthmore College
2
University of Pittsburgh
2
Allegheny College
1
Bucknell University
1
Carnegie Mellon University
1
Dickinson College
1
Drew University
1
Duquesne University
1
Gettysburg College
1
Haverford College
1
Indiana University of Pennsylvania
1
La Salle University
1
Lehigh University
1
Lycoming College
1
Slippery Rock University
1
Susquehanna University
1
Ursinus College
1
West Virginia University
1