National Museum of Nuclear Science & History
Carl Neumann worked for the United States Engineer District Office.
Ruan worked for Stone and Webster Engineering Corporation.
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.
Jordan worked at the 300 Area at Hanford during the Manhattan Project.
Lorraine Thurman was a laboratory helper at the Metallurgical Laboratory in Chicago during the Manhattan Project.
