National Museum of Nuclear Science & History
A. J. MacDonald worked for the Union Carbide & Carbon Corporation.
J. W. Hoover worked for the Edenfield Electric Company.
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.
Beggs worked in the United States Engineer District Office.
Donald O. Cole served as a corporal in the 393rd Bombardment Squadron. He was regularly assigned to the B-29 Top Secret.
