National Museum of Nuclear Science & History
R. R. Wischmeyer worked for the Midwest Piping and Supply Company.
C. R. Jones worked for the Union Carbide & Carbon Corporation.
Robert Ball was a security guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Ples M. Cheek served in the 1st Ordnance Squadron.
L. Krug worked in the Instrument Section at the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
