National Museum of Nuclear Science & History
Ed Helfenberger worked for the Roane-Anderson Company.
P. F. Grieger worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Marshall worked in the 100 D Area at Hanford during the Manhattan Project.
Harold Ninger was a staff worker at Los Alamos during the Manhattan Project.
Leon Redmon worked for the Tennessee Eastman Corporation at the Y-12 Plant.
