National Museum of Nuclear Science & History
Roman Vigil was a staff worker at Los Alamos during the Manhattan Project.
Leonard Krouldis was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Hilgeman worked at the 100-D Area at Hanford during the Manhattan Project.
G. H. McLarty worked for the Kellex Corporation at the K-25 Plant.
Ernest J. Blyler served in the 509th Headquarters and Base Services Squadron.
