National Museum of Nuclear Science & History
Bill Hartnett worked in plutonium metallurgy for the Manhattan Project at the Hanford Engineer Works from January 1943 to December 1946.
Charles Cooper was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Dr. Alexander Langsdorf (1912-1996) was an American physicist who worked under Enrico Fermi at the University of Chicago.
