National Museum of Nuclear Science & History
V. J. Johnson worked for the Union Carbide & Carbon Corporation.
Hallie Perry was an electrician at Oak Ridge, Tennessee for the Watson-Flagg Engineering Company from 1943 to 1945.
Alfred Pfanstiehl was a junior physicist at the Chicago Met Lab during the Manhattan Project. Pfanstiehl was a signatory of the Szilard Petition, an attempt to avert military use of the atomic bomb against Japan.
