Party affiliation: Republican
Resident fellow Native Sons of Golden West in Pacific Coast history, 1919-1920. Traveling fellow same, carrying on research in Archives of Spain, France and England, 1921-1922. Assistant in history, University of California, Berkeley, 1920-1921 and 1922-1923.
Assistant professor of history and government, University of Southern California, 1923-1924, associate professor, 1924-1925, professor, 1925-1926. Director of research California Taxation Improvement Association, Los Angeles, 1925. Director of research California Taxpayers Association, 1926-1929, secretary-manager, 1929-1930.
Head of Vandegrift Research Associates, doing governmental and economic research in California, Utah, Nevada, and Arizona, 1928-1930. Engaged in research of tax situation and governmental organization of State of Utah for Metal Mining Industry of Utah, 1929-1930. Director of finance State of California and chairman State Board of Control, 1930-1934.
Chairman State Emergency Council, California. First president California State Employees Retirement Board. Public Stockton (California).
Independent, 1933-1934. Managing own interests and ranching in Ventura and Yolo counties, 1934-1935. General agent Occidental Life Insurance Company of California for Sacramento and Superior, California (18 counties), 1935-1936, branch manager, 1936-1939, associate general agent, same, Oakland, 1939-1940, agent since October 19, 1940.
Research and tax consultant for Utah Foundation since 1945. Legislative auditor, State of California (1st to hold this office), since October 20, 1941.