National Museum of Nuclear Science & History
Paul Sperling was a staff worker at Los Alamos during the Manhattan Project.
C. A. Babcock worked for the Union Carbide & Carbon Corporation.
John Mendl was a member of the 1st Ordnance Squadron in the 509th Composite Group stationed on Tinian Island in the Pacific.
Walter E. Jordan worked on the Manhattan Project as an employee of DuPont on the physics staff. He worked at the University of Chicago and Hanford, WA.
M. A. Mostyn worked for the Roane-Anderson Company.