Title: Memorandum, Hoover to Lyon, Soviet Espionage Activity, September 18, 1945, Top Secret.
Creator: Memorandum Hoover
Date in Source: September 18, 1945
Subject: "USSR" Soviet espionage" "Igor Gouzenko" - Federal Bureau of Investigation - KGB - Top Secret
Format: 4 p.
Note: RG-59, Central Decimal File 1945-1949, Box 6648, File: 861.20242/9-1845, NA, CP.