National Museum of Nuclear Science & History
George Koval was an American chemical engineer and one of the most important Soviet spies of the 20th century.
Mary Vasaly worked for the United States Engineer District Office.
Francis worked in the United States Engineer District Office.
Herbert Depke was born November 18, 1907 in Danville, Illinois. He received a B.S. from the University of Illinois in 1930, then began working for his family’s business.