National Museum of Nuclear Science & History
Sotero Romero was a staff worker 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.
Palevsky worked on the Manhattan Project at the University of Chicago and Los Alamos. She was part of the team that designed the lenses used to photograph the Trinity test.