National Museum of Nuclear Science & History
Ed Helfenberger worked for the Roane-Anderson Company.
Hubert P. Yockey is an American physicist who studied under J. Robert Oppenheimer at the University of California, Berkeley and worked with him during the Manhattan Project.
Meyer Steinberg is a chemical engineer and a veteran of the Special Engineer Detachment. After graduating from Cooper Union College with a degree in chemical engineering, Steinberg was drafted and placed in the Special Engineer Detachment at Oak Ridge.
H. S. Brown worked for Clinton Laboratories at the X-10 Reactor.