National Museum of Nuclear Science & History
Grace Wallace worked for the United States Engineer District Office.
Julius “Osty” Ostspowicz was a glassblower in the Chemistry Division at the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
W. T. Hanson, Jr. worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Lyda Speck served in the Women’s Army Corps at Los Alamos during the Manhattan Project. She later remembered “how tight the security was.
