National Museum of Nuclear Science & History
R. F. Ridgeway worked for the Roane-Anderson Company.
S. J. Helfman worked for the J.A. Jones Construction Company.
Hunt worked at the 100-B Area at Hanford during the Manhattan Project.
Joyce M. Hopkins was a research assistant in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
J. F. Bevis worked for the J.A. Jones Construction Company.
