intelligence effort, under the covernames 'Gnome' and 'Jacob'. One cable, dated 14 September 1944, requests a $500 bonus for Perl's information on a Westinghouse jet engine assembly. John Earl Haynes and Harvey Klehr have suggested that data provided by him aided the Soviets in the unique tail-fin design of the MiG-15 fighter used in the Korean War. See also Atomic spies Julius Rosenberg Morton Sobell Raymond L. Wise Joel Barr Alfred Sarant Max Elitcher References External sources Douglas Linder, A Trial Account (2001) John Earl Haynes and Harvey Klehr, Venona: Decoding Soviet Espionage in America, Yale University Press (1999), pg. 259, 347, 449. . John Earl Haynes, "Cover Name, Cryptonym, CPUSA Party Name, Pseudonym, and Real Name Index. A Research Historian’s Working Reference" (revised February 2007), on the author's web site. Ronald Radosh and Joyce Milton, The Rosenberg File, New Haven: Yale University Press, 1997. Katherine A. S. Sibley, Red Spies in America: Stolen Secrets and the Dawn of the Cold War, Wichita: University Press of Kansas, 2007. 1920 births 1970 deaths City College of New York alumni Columbia University alumni American perjurers Espionage in the United States Jewish American scientists American spies for the Soviet Union American people in the Venona papers