National Museum of Nuclear Science & History
Hays worked at the 200 West Area at Hanford during the Manhattan Project.
Gilbert Mathis was an electrical engineer at Los Alamos from 1943 to 1946. He was recruited for the Manhattan Project as a member of the US Army Signal Corps.
Howard Harmon worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Curtis P. Fowler served in the 1027th Air Material Squadron.