National Museum of Nuclear Science & History
John Costa worked at the shop in the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
F. H. Holbrook worked for 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.