National Museum of Nuclear Science & History
Day worked for Stone and Webster Engineering Corporation.
Crawford worked in the United States Engineer District Office.
William Brilliant was a guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Andrew G. Demo served in the 393rd Bombardment Squadron.
Lyda Speck served in the Women’s Army Corps at Los Alamos during the Manhattan Project. She later remembered “how tight the security was.
