National Museum of Nuclear Science & History
Waldo Houser worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Helena Calloway was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Wilber A. Stevens was an army officer in charge of overseeing construction at Los Alamos. He helped choose the site where the Manhattan Project would test its first atomic bomb.
