National Museum of Nuclear Science & History
Paul Duga served in the 1st Ordnance Squadron.
R. F. Perkins worked for the Union Carbide & Carbon Corporation.
Robert E. Johnson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Harrison Brown (1917-1986) was an American geochemist. He worked at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) and Oak Ridge sites during the Manhattan Project.