Institución
University of Notre Dame
73
Catholic Theological Union
40
Catholic University of America
29
College of the Holy Cross
26
Philadelphia Archdiocesan Historical Research Center (PAHRC)
23
Loyola University Chicago
21
Boston College
20
Marquette University
18
St. Michael's College
18
University of Dayton
11
University of San Diego
3
Benedictine University
2
Catholic Research Resources Alliance
2
Villanova University
2
Barry University
1
University of San Francisco
1