National Museum of Nuclear Science & History
Betty Utterback was a staff worker at Los Alamos during the Manhattan Project.
F. C. Liepman worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Irving E. Bardecker served in the 393rd Bombardment Squadron.
Jack L. Callan was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
