מוסד
Philadelphia Archdiocesan Historical Research Center (PAHRC)
60
Marquette University
31
Catholic Theological Union
25
University of Notre Dame
22
Catholic University of America
17
University of Dayton
17
Benedictine University
6
Loyola University Chicago
5
Boston College
4
Loyola Marymount University
3
Barry University
2
College of the Holy Cross
2
Fontbonne University
2
Archdiocese of Cincinnati
1
Catholic Research Resources Alliance
1
Georgetown University
1
Seton Hall University
1