National Museum of Nuclear Science & History
C. M. Walker, Jr. worked for the Kellex Corporation at the K-25 Plant.
J. A. Lane worked for the Roane-Anderson Company.
John J. Norton was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
J. D. Renfroe worked for Clinton Laboratories at the X-10 Reactor.