The Clark T. Sawin Memorial Library serves the member of the Endocrine Society and members of the public interested in the history of endocrinology. Reference service is available. Research in the library is permitted by appointment only.

The library contains Dr. Sawin’s personal collection which includes more than 6,500 books, meeting programs from endocrine organizations circa 1930 through current day, professional and personal research papers, photographs, and many historical articles. In addition the library contains oral histories of prominent endocrinologists.

The archival collection contains historical records (institutional publications, executive meeting minutes, meeting programs, photos, etc.), documenting the Endocrine Society's activities since its founding in 1916.