National Museum of Nuclear Science & History
Leo Safranski was a research associate at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Alexander Glon was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
R. Althoff worked for the J.A. Jones Construction Company.
W. J. English worked for the Roane-Anderson Company.
Roland Mertes worked for the Kellex Corporation at the K-25 Plant.