National Museum of Nuclear Science & History
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.
Paul Stewart worked for the Roane-Anderson Company.
Halbrook worked in the United States Engineer District Office.
Albert R. Daloisio served in the 603rd Air Engineering Squadron.
