National Museum of Nuclear Science & History
R. J. Schrader worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Leland Nelson worked for Clinton Laboratories at the X-10 Reactor.
Henry Faul was a geologist working on Enrico Fermi's team at the University of Chicago. He was responsible for prospecting uranium ore in Colorado and Utah.
Hollenbach worked at the 200 West Area at Hanford during the Manhattan Project.