National Museum of Nuclear Science & History
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.
W. E. Wallace worked for the Roane-Anderson Company.
Beverly W. Lewis was a chemist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Lloyd H. Nelson served in the 320th Troop Carrier Squadron.