National Museum of Nuclear Science & History
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.
Elizabeth Painter (later Elizabeth Painter Marcus) was an associate biologist in the Health Division at the University of Chicago Metallurgical Laboratory.