Holding Institution
- Fordham University12
- Wellesley College12
- Bryn Mawr College11
- New York University11
- Saint Louis University11
- The Nelson-Atkins Museum of Art11
- Rutgers University10
- Grolier Club9
- University of Rochester9
- Buffalo & Erie County Public Library7
- Princeton University7
- Conception Abbey and Seminary6
- General Theological Seminary5
- Smith College5
- California State Library3
- University of California, Davis3
- University of Wisconsin–Madison3
- Pepperdine University2
- Providence Public Library2
- University of Dayton2