National Museum of Nuclear Science & History
A. U. Avera worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.
Petersen worked in the 200 West Area at Hanford during the Manhattan Project.
Vester worked at the 200 West Area at Hanford during the Manhattan Project.