'''Joel Barr''', also '''Iozef Veniaminovich Berg''' and '''Joseph Berg''', was born in 1916 to [[Jew]]ish immigrant parents. He attended City College of New York (CUNY) with [[Julius Rosenberg]] and later worked with Rosenberg and [[Al Sarant]] at the United States [[United States Army Signal Corps]] laboratories at Fort Monmouth, New Jersey during [[World War II]]. Barr and Sarant, who were recruited into espionage by Rosenberg, shared an apartment and were allowed to function as a team by their [[KGB]] [[Agent_handler#Case_officer|Case Officer]], [[Aleksandr Feklisov]]. Feklisov regarded the pair as the most productive members of the group. [[Harry Gold]], besides Rosenberg, sometimes also couriered information to and from Barr and Sarant. | '''Joel Barr''', also '''Iozef Veniaminovich Berg''' and '''Joseph Berg''', was born in 1916 to [[Jew]]ish immigrant parents. He attended City College of New York (CUNY) with [[Julius Rosenberg]] and later worked with Rosenberg and [[Al Sarant]] at the United States [[United States Army Signal Corps]] laboratories at Fort Monmouth, New Jersey during [[World War II]]. Barr and Sarant, who were recruited into espionage by Rosenberg, shared an apartment and were allowed to function as a team by their [[KGB]] [[Agent_handler#Case_officer|Case Officer]], [[Aleksandr Feklisov]]. Feklisov regarded the pair as the most productive members of the group. [[Harry Gold]], besides Rosenberg, sometimes also couriered information to and from Barr and Sarant. |