National Museum of Nuclear Science & History
H. A. McFadden worked for the Roane-Anderson Company.
Joseph Getzholtz worked in the shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
A. O. Seidel worked for the Asbestos & Magnesia Materials Company.
Josephine Winch was a research assistant in the chemistry division at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Leo Zbanek worked for the United States Engineer District Office.
