National Museum of Nuclear Science & History
Paul Willard was a staff worker at Los Alamos during the Manhattan Project.
W. M. Mathis worked for Clinton Laboratories at the X-10 Reactor.
Ross H. Johanson served in the 603rd Air Engineering Squadron.
Cheney worked in the United States Engineer District Office.
P. P. Evans worked at the 200 West Area at Hanford during the Manhattan Project.