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.
Hutchins worked at the 300 Area at Hanford during the Manhattan Project.
Henry Paul was a staff worker at Los Alamos during the Manhattan Project.
C. D. Rich served in the 390th Air Service Group.