National Museum of Nuclear Science & History
Sanford McDonnell was a mechanical engineer with the Special Engineering Detachment at Los Alamos from April 1944 to April 1946.
Almon worked at the 100 D Area at Hanford during the Manhattan Project.
Earl Painter served in the 320th Troop Carrier Squadron.
A.C. Tregillus was a procurement chief at the Metallurgical Laboratory in Chicago during the Manhattan Project.
