Collections : [University of Michigan Bentley Historical Library]

Michigan State Police officer, 1923-1941, Michigan Civil Defense Director during World War II, State Police Commissioner, 1947-1951, Republican candidate for governor, 1954, served on Michigan Liquor Commissioner and as Detroit Recorders Court judge. Papers include extensive documentation of his service as Director of Civil Defense and State Police Commissioner and his political activities.

The Donald S. Leonard collection is a valuable resource to researchers studying topics of law enforcement and civil defense and Michigan state politics and government. The Donald S. Leonard collection has been arranged into seven series: Personal and Correspondence, 1925-1966; Civil Defense; World War II Era, 1941-1946; Michigan State Police, 1929-1952; Detroit Police Department, 1952-1954; Political Files, 1950-1956; Organization and Activities Files; Audio-Visual Materials; Committee on Equal Educational Opportunities. Leonard also taught law course at the State Police Recruit School and Metropolitan Police Academy of Michigan.

Republican state senator, 1948-1950, from Kent County, Michigan, state auditor general, 1950-1954, unsuccessful candidate for the U.S. Senate nomination in 1952, and member of the Republican National Committee. Correspondence, newspaper clippings, speeches and printed material relating to his political career, particularly his activities on the Michigan Commission on Aging, the Michigan Constitutional Convention of 1961-1962, and the Michigan Senate campaign of 1952.

The John B. Martin papers consists of correspondence, memoranda, clippings, and subject files relating to his political and organizational activities. The series in the collection are: Correspondence; Newspaper clippings; Political and Campaign Materials; Auditor General, 1950-1954; Aging organizations; Michigan Constitutional Convention, 1961-1962; Michigan Crime and Delinquency Council; Scrapbooks; Sound Recordings; Visual Materials; and Miscellaneous.