Correspondence, reports, notes, speeches and writings, and interview transcripts,
relating to Federal Bureau of Investigation surveillance of the Communist Party, and the
relationship between the Communist Party of the United States and the Soviet communist
party and government. Includes some papers of John Barron used as research material for
Operation Solo: The FBI's Man in the Kremlin (Washington, D.C., 1996). Hard-copy material also available on microfilm (2 reels).