'''William Spiegel''' was an American and member of the [[Communist Party of the United States]] (CPUSA) who allowed his apartment to be used for photographic work to Soviet Military Intelligence ([[GRU]]) as part of the [[Communist Party of the United States#Secret apparatus|secret apparatus]] conducting [[espionage]] on behalf of the [[Soviet Union]] in the 1930s which was supervised by [[Whittaker Chambers]].
===Reference=References==
*Whittaker Chambers, ''Witness'' New York: Random House, (1952), pg. 421n.
* John Earl Haynes and Harvey Klehr, ''Venona: Decoding Soviet Espionage in America'', Yale University Press (1999).
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[[Category:KGB Agents and Sources]]