National Museum of Nuclear Science & History
Harder worked at the 300 Area at Hanford during the Manhattan Project.
Alfanso Sandoval was a staff worker at Los Alamos during the Manhattan Project.
Thomas Little was a millwright for the civilian contractor Tennessee Eastman Company from 1944 to 1946.
E. S. Ethridge worked for the Tennessee Eastman Corporation at the Y-12 Plant.
