National Museum of Nuclear Science & History
George Kistiakowsky (1900-1982) was a Ukrainian-American physical chemist. He joined the Manhattan Project in late January 1944, leaving his role as chief of the National Defense Research Committee’s Explosives Division.
James worked at the 300 Area at Hanford during the Manhattan Project.
Hannibal Fraga was an engineer. He joined the Manhattan Project in the fall of 1944. He worked in the inspection department at Los Alamos.