National Museum of Nuclear Science & History
Hugo Leckelt was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
E. E. DeLong served in the 509th Headquarters and Base Services Squadron.
A. O. Flindt worked for the Tennessee Eastman Corporation at the Y-12 Plant.
A. E. Kingalover worked for the Roane-Anderson Company.