National Museum of Nuclear Science & History
Antilla worked in the United States Engineer District Office.
Gilbert worked at the 200 West Area at Hanford 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.
Lester Everett worked for the Tennessee Eastman Corporation at the Y-12 Plant.