National Museum of Nuclear Science & History
Jose Quintana was a staff worker at Los Alamos during the Manhattan Project.
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.
C. G. Fellows worked for the Union Carbide & Carbon Corporation.
John Manthey worked for the United States Engineer District Office.