Nathan Gregory Silvermaster

Known to the FBI as "Gregory," Silvermaster was a government economist who allegedly became head of the so-called Silvermaster group - government employees who were charged with cooperating with Russian intelligence agents during World War II. Elizabeth Bentley said Silvermaster was a member of a small espionage ring that gave her government documents. Some historians say declassified "Venona" documents suggest that Silvermaster passed on government data to the Russians during the war. Throughout his life, however, Silvermaster firmly denied the charges, and family members are continuing their efforts to clear his name.