National Museum of Nuclear Science & History
Helena Calloway was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
L. A. Waddell worked for the Roane-Anderson Company.
H. R. Grady worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Michael Vickio was a member of the Military Police at Los Alamos, working on post security and the complex’s motor pool.
