National Museum of Nuclear Science & History
Hannibal Fraga was an engineer. He joined the Manhattan Project in the fall of 1944. He worked in the inspection department at Los Alamos.
Charles Allen Thomas (1900-1982) was an American chemist and industrial leader. Thomas was recruited to join the Manhattan Project in 1942 by General Groves, who offered him a postion as a deputy to Robert Oppenheimer, the director of the Los Alamos Laboratory in New Mexico.
