National Museum of Nuclear Science & History
Ken Pumphrey joined the Manhattan Project at Los Alamos in 1946, where he worked as a security guard until 1948.
Daniel J. Kelly served in the 1027th Air Material Squadron.
Calhoun worked at the 100-B Area at Hanford during the Manhattan Project.
Thomas Little was a millwright for the civilian contractor Tennessee Eastman Company from 1944 to 1946.