National Museum of Nuclear Science & History
R. F. Perkins worked for the Union Carbide & Carbon Corporation.
John Shoemaker was a staff worker at Los Alamos during the Manhattan Project.
Frank Cook worked for the JA Jones Construction Company in Oak Ridge, Tennessee during the Manhattan Project.
Nelson C. Baker was a lieutenant working as an executive officer to Captain Palmer in the Second Provisional Special Engineer Detachment at Los Alamos.
