This record group contains correspondence, 1949-1962; court transcripts and other legal documents, 1952-1955; clippings, 1953-1956; and telegrams, 1955, related to Jost's application for citizenship and the legal appeal process. It also contains papers presented by Jost at various conferences on the topic of mental healthcare, 1945-1998; articles written by Jost on the topic of mental healthcare or by others about Kings View Hospital, 1950-1998; correspondence relating to mental healthcare issues, 1967-1998; and government testimony by Jost and appointments relating to mental healthcare, 1969-1974.

Arthur Jost was born 10 October 1918 in Flowing Well, Saskatchewan. In 1927 he moved with his family to the United States and settled in Reedley, California. Jost became a member of the Reedley Mennonite Brethren Church.

Collection is open for research.