National Museum of Nuclear Science & History
John Miles was a physicist for the DuPont Company. During the Manhattan Project, he worked at the University of Chicago Met Lab and at Hanford.
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.
E. V. Lofstrum worked for the J.A. Jones Construction Company.