National Museum of Nuclear Science & History
Ed Helfenberger worked for the Roane-Anderson Company.
John E. Christensen served in the 1027th Air Material Squadron.
D. C. Miller worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Bartholomew "Bart" Rivers was an instrument technician at the Hanford, Washington facility from 1943 through the end of the war.