Institution
Carnegie Mellon University
Temple University
4
University of Pittsburgh
4
New York University
3
University of Pennsylvania
3
Haverford College
2
Pennsylvania State University
2
Bryn Mawr College
1
Dickinson College
1
La Salle University
1
Lafayette College
1
Marshall University
1
Rutgers University
1
Seton Hall University
1
State Library of Pennsylvania
1