National Museum of Nuclear Science & History
Jas Clayton worked for Clinton Laboratories at the X-10 Reactor.
Leinberger worked in the 200 W Area at Hanford during the Manhattan Project.
Jacob Epting worked as a carpenter in Oak Ridge, TN from November 1942 to October 1943. While Epting assumed he was building a hospital, he was never formally told about the project he was working on.
L. W. Nordheim worked for Clinton Laboratories at the X-10 Reactor.