National Museum of Nuclear Science & History
Frederick worked at Los Alamos during the Manhattan Project.
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.
Benjamin Bederson, a New York native, was selected to serve in the Special Engineering Detachment during the Manhattan Project.
McCloud worked as a secretary at the Y-12 plant at Oak Ridge during the Manhattan Project.
