Harry Gold (December 11, 1910 – August 28, 1972) was a laboratory chemist and spy for a number of Soviet spy rings operating in the United States during the Manhattan Project.
in the late 1940s Soviet Case Officer Semyon Semenov appropriated Gold and was assigned the codename GUS, GOS, or GOOSE. Semenov remained Gold's control officer until March 1944.
Under interrogation, Gold admitted that he had been involved in espionage since 1934 and had helped Fuchs pass information about the Manhattan Project to the Soviet Union by way of Soviet General Consul Anatoli Yakovlev. Gold's confession led to the arrest of David Greenglass. His testimony resulted in the arrest, trial and execution of Julius and Ethel Rosenberg.
Gold was sentenced in 1951 to thirty years imprisonment and was paroled in May 1965, after serving just under half of his sentence. He died in 1972 in Philadelphia, age 62;