Alexander Koral (1897 – 1968) 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.
In December 1945, Koral had been sent to tell Silvermaster “no more visits would be made to him”, at the time of Elizabeth Bentley's defection and the Soviet networks were being compromised.
[1] On August 10, 1948, the Washington Post reported: Two ashen-faced men stood up in the crowded caucus room of the Old House Office Building and were confronted by Miss Elizabeth T. Bentley, confessed courier for Communist underground...
Investigator Louis J. Russell, former FBI agent, took the stand... "Koral... had a sone who was ill and had a large amount of hospital and medical bills."
[3]In late September 1948, Koral was dismissed from his job for failing to cooperate with HUAC per Chapter 40 Section 903 of the New York City Charter.