Overview: The Charles Sprecher Davidson papers, 1918-1999 (inclusive), 1941-1990 (bulk), are a product of Davidson’s research and personal and professional activities undertaken throughout the period of his service at three institutions: Harvard Medical School, Boston, Massachusetts; the Thorndike Memorial Laboratory at Boston City Hospital, Boston, Massachusetts; and the Massachusetts Institute of Technology, Cambridge, Massachusetts.

Overview: Correspondence, speeches, writings, and photographs of Matilda White Riley, sociologist and gerontologist.