Alger Hiss was an American government official accused in 1948 of having spied for the Soviet Union in the 1930s. The statute of limitations had expired for espionage, but he was convicted of perjury in connection with this charge in 1950. Before the trial Hiss was involved in the establishment of the United Nations, both as a US State Department official and as a UN official. In later life, he worked as a lecturer and author.
The Venona project was a United States counterintelligence program initiated during World War II by the United States Army's Signal Intelligence Service and later absorbed by the National Security Agency (NSA), that ran from February 1, 1943, until October 1, 1980. It was intended to decrypt messages transmitted by the intelligence agencies of the Soviet Union. Initiated when the Soviet Union was an ally of the US, the program continued during the Cold War, when the Soviet Union was considered an enemy.
Harry Dexter White was a senior U.S. Treasury department official. Working closely with the Secretary of the Treasury Henry Morgenthau Jr., he helped set American financial policy toward the Allies of World War II. He was later accused of espionage by passing information to the Soviet Union.
Nathan Gregory Silvermaster, an economist with the United States War Production Board (WPB) during World War II, was the head of a large ring of Communist spies in the U.S. government. It is from him that the FBI Silvermaster File, documenting the Bureau's investigation into Communist penetration of the Federal government during the 1930s and 1940s, takes its name. His wife, Helen and stepson, Anatole Volkov, were members of his ring.
Judith Coplon Socolov was a spy for the Soviet Union whose trials, convictions, and successful constitutional appeals had a profound influence on espionage prosecutions during the Cold War.
Harold Glasser was an economist in the United States Department of the Treasury and spokesman on the affairs of the United Nations Relief and Rehabilitation Administration (UNRRA) 'throughout its whole life' and he had a 'predominant voice' in determining which countries should receive aid. Glasser was a member of the Perlo group of Soviet spies during World War II and worked closely with Harry Dexter White. His code name in Soviet intelligence and in the Venona files is "Ruble".
Edward Joseph Fitzgerald was an American who worked for the War Production Board during World War II and was an adviser to Senator Claude Pepper. He was alleged to have been a member of the Perlo group of Soviet spies. Fitzgerald's name in Venona project decrypt 588 New York to Moscow, 29 April 1944, was sent in the clear to Moscow by Soviet Case Officer Iskhak Akhmerov reporting on Elizabeth Bentley's meeting with Perlo group.
Lt. Col. Duncan Chaplin Lee (1913–1988) was a confidential senior assistant to Maj. Gen. William Donovan, founder and director of the Office of Strategic Services (OSS), World War II-era predecessor of the CIA, between 1942 and 1946. Lee has posthumously been identified by the Venona project as the NKVD mole inside the OSS with the code name "Koch," making Lee the most senior alleged spy the Soviet Union ever recruited inside the U.S. intelligence community.
As early as the 1920s, the Soviet Union, through its GRU, OGPU, NKVD, and KGB intelligence agencies, used Russian and foreign-born nationals, as well as Communists of American origin, to perform espionage activities in the United States, forming various spy rings. Particularly during the 1940s, some of these espionage networks had contact with various U.S. government agencies. These Soviet espionage networks illegally transmitted confidential information to Moscow, such as information on the development of the atomic bomb. Soviet spies also participated in propaganda and disinformation operations, known as active measures, and attempted to sabotage diplomatic relationships between the U.S. and its allies.
Maurice Hyman Halperin (1906–1995) was an American writer, professor, diplomat, and accused Soviet spy.
Joseph Katz (1912—2004) worked for Soviet intelligence from the 1930s to the late 1940s as one of its most active liaison agents. Katz was assigned management of the "First Line," that part of the NKGB mission aimed at recruiting selected members of the Communist Party USA. He was an agent/group leader (gruppovik) and co-owner of a Soviet front company that manufactured gloves.
Headed by Victor Perlo, the Perlo group is the name given to a group of Americans who provided information which was given to Soviet intelligence agencies; it was active during the World War II period, until the entire group was exposed to the FBI by the defection of Elizabeth Bentley.
Iskhak Abdulovich Akhmerov (1901–1976) was a highly decorated OGPU/NKVD (KGB) Soviet security officer, best known to historians for his role in KGB operations in the United States 1942–1945. His name appears in the Venona decryptions over fifty times, often as signatory, and on his return to the Soviet Union in 1945/46, he rose to deputy chief of the KGB's 'illegal' intelligence section.
Harry Magdoff was accused by a number of authors as having been complicit in Soviet espionage activity during his time in US government. He was accused of passing information to Soviet intelligence networks in the United States, primarily through what the FBI called the "Perlo Group." Magdoff was never indicted, but after the end of the Cold War, a number of scholars have inspected declassified documents from U.S. and Soviet archives. They cite these documents to support the claim that Magdoff was involved in espionage. Other authors have taken issue with some of the broader interpretations of such materials which implicate many Americans in espionage for the Soviet Union, and the allegation that Harry Magdoff was an information source for the Soviets is disputed by several academics and historians asserting that Magdoff probably had no malicious intentions and committed no crimes.
Alexander Koral was an American member of the Communist Party of the United States (CPUSA) who headed a network of spies for Soviet intelligence during World War II called the "Art" or "Berg" group. Koral's wife, Helen Koral, also was involved with the group.
Bella Joseph was the wife of Julius Joseph. The couple worked for the United States Government. It is alleged that they also worked for Soviet Intelligence during World War II, Bella in the Office of Strategic Services' Motion Picture Division.
Mikhail Tkach, also Michal Tkacz, Michael J. Tkach, and M. Nastivsky, born in Mastisiw, Poland, of Ukrainian parents, and arrived in the United States at New York City on November 25, 1909, under the name Michal Tkacz. Tkach's wife, Yeroslava, was born in Slatchev, Poland, and entered the U.S. in 1913. The Tkachs lived in New York City from 1922 onwards. Tkach became a naturalized U. S. citizen in New York City on December 8, 1936.
Robert Talbott Miller III was an American citizen who worked in the United States Office of the Coordinator of Inter-American Affairs during World War II. He was alleged to be part of the Soviet espionage group known as the "Golos ring" in the 1940s.
The Silvermaster File of the United States' Federal Bureau of Investigation is a 162-volume compendium totalling 26,000 pages of documents relating to the FBI's investigation of GRU and NKVD moles inside the U.S. federal government both before and during the Cold War.
