National Museum of Nuclear Science & History
Howard Harmon worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Michael Rimek was a laborer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Earl Rau served in the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
Litchfield worked in the 100 F Area at Hanford during the Manhattan Project.