National Museum of Nuclear Science & History
R. J. Guthrie worked for the Watson-Flagg Engineering Company.
Virginia Bisbeg was a technical worker at the Metallurgical Laboratory in Chicago during the Manhattan Project.
W. H. Longtin worked for the United States Engineer District Office.
George Placzek was a Czech physicist. He was born in Brno, Moravia, which was then part of Austria-Hungary but today is in the Czech Republic.
