Joseph J. Greenbaum (1924-2011), a specialist in experimental psychology, joined the Graduate Faculty of the New School for Social Research in 1957 and was appointed full professor in 1962. He also served as dean of the Graduate Faculty from 1966 to 1979. This collection contains documentation of Greenbaum's courses in the Psychology Department and administrative files from his role as dean.

These records were created by the dean's office of the adult education division of The New School (as of 2022, Schools of Public Engagement), and predominantly reflect the activities of two deans, William Birenbaum and Allen Austill, 1961-1979. A subset of records document the formation of New School College in the 1960s, the Institute for Retired Professionals, and the Physicians Assistant program. A number of files are restricted due to confidentiality.