National Museum of Nuclear Science & History
Beckwith worked in the United States Engineer District Office.
Physicist Norman Hilberry was Arthur H. Compton's right-hand man at the Chicago Met Lab, serving as associate director and handling administration.
Clarence Grover Sproul worked as a machinist on the Manhattan Project in Los Alamos, NM from January through June 1945.
Mary Kelly was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.