National Museum of Nuclear Science & History
Flonnie Sloan worked in Building 9201 in the Y-12 plant at Oak Ridge, Tennessee from 1943 to 1945.
Henry Barwick worked as a plumber, pipefitter, and steamfitter during the building of the Y-12 plant at Oak Ridge.
J. F. Ryan worked for Clinton Laboratories at the X-10 Reactor.
Calvin S. Shepherd worked on the Manhattan Project at Los Alamos, NM and the Trinity Site.