Arvid Jacobson was a Finnish-American Communist, recruited for Soviet espionage in Finland by the Communist Party of the United States (CPUSA) - Soviet Military Intelligence (GRU) group which Whittaker Chambers headed. Jacobson was arrested for espionage in Finland in 1933.
- Allen Weinstein, Perjury: The Hiss-Chambers Case, New York: Random House, (1997), pg. 106.
- John Earl Haynes and Harvey Klehr, Venona: Decoding Soviet Espionage in America, Yale University Press (1999).