National Museum of Nuclear Science & History
R. R. Tippy worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Spencer worked for Stone and Webster Engineering Corporation.
A. J. Schwertfeger worked for Clinton Laboratories at the X-10 Reactor.
Samuel Beall Jr. is a nuclear engineer who worked on the Manhattan Project at Chicago, IL, Oak Ridge, TN, and Hanford, WA.