National Museum of Nuclear Science & History
John Fancher worked for the Kellex Corporation at the K-25 Plant.
Henry Faul was a geologist working on Enrico Fermi's team at the University of Chicago. He was responsible for prospecting uranium ore in Colorado and Utah.
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.
N. B. Walsh worked for the United States Engineer District Office.