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.
McLaughlin worked in the 100 D Area at Hanford during the Manhattan Project.
T. W. Hungerford, Jr. worked for Clinton Laboratories at the X-10 Reactor.
J. R. Poling worked for the United States Engineer District Office.
