Gerontologist, lecturer in social research, and director of the Institute for Human Adjustment at the University of Michigan. Professional files, especially concerning the Institute, the University Board on University Policies, the Bureau of Psychological Services, and the University Fresh Air Camp; also photographs.
The Clark Tibbitts Papers, 1926-1969, are arranged into four principal series corresponding to the major activities of Tibbitts's career in the fields of sociology and gerontology. There are also eight smaller series (plus an addition to a series) received subsequent to the accessioning of the bulk of the papers.