Related materials at the State Historical Society of Wisconsin include Tape 582A, a series of recorded interviews with Kyle chronicling his career. Subjects discussed are his early background, Progressive party activity, work with the La Follettes, Senator F. Ryan Duffy, Representative Thomas Amlie, his term as executive secretary of the Wisconsin Labor Relations Board, the 1946 Senate primary election, and his tenure as executive secretary of the Wisconsin Association of Cooperatives, 1948-1962. Abstracts of the tapes are also available.
