National Museum of Nuclear Science & History
Walter Johnson worked for the United States Engineer District Office.
Alan E. Florin was a research associate in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
Ayres worked in the United States Engineer District Office.
Ennis Peters was a staff worker at Los Alamos during the Manhattan Project.
I. E. Martin worked for the Union Carbide & Carbon Corporation.
