National Museum of Nuclear Science & History
Jean Ashin was a stenographer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
W. Petterson worked for the United States Engineer District Office.
Brown worked in the United States Engineer District Office.
Donavan worked in the United States Engineer District Office.
David L. Hill was an associate experimental physicist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.