National Museum of Nuclear Science & History
Beard worked in the United States Engineer District Office.
Conen served as a first lieutenant in the 393rd Bombardment Squadron. He participated in the mission to bomb Hiroshima as a flight engineer for the Top Secret.
Jose A. Valdez was a staff worker at Los Alamos during the Manhattan Project.
Walter J. Grundhauser was a research assistant the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
A. J. MacDonald worked for the Union Carbide & Carbon Corporation.
