National Museum of Nuclear Science & History
Walker worked at the 100-F Area at Hanford during the Manhattan Project.
Smith worked at the 100-D Area at Hanford during the Manhattan Project.
George Meacham worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Helen Mannon worked for the Roane-Anderson Company.
Lawrence Thomas Abraham was a contractor who served as the construction superintendent at Los Alamos during the Manhattan Project.