Holding Institution
- Bryn Mawr College34
- Indiana University Bloomington27
- Rutgers University24
- The Nelson-Atkins Museum of Art24
- Saint Louis University19
- University of California, Davis15
- Vassar College15
- Columbia University Rare Book & Manuscript Library14
- Grolier Club13
- General Theological Seminary10
- Conception Abbey and Seminary7
- New York Academy of Medicine7
- Jewish Theological Seminary of America6
- Science History Institute5
- Smith College5
- University of Dayton5
- Newberry Library & Western Michigan University3
- American Academy in Rome2
- Providence Public Library2
- University of California, Riverside2