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 his book
Operation Solo: The FBI's Man in the Kremlin (Washington, D.C., 1996). Hard-copy material also available on microfilm (2 reels).