National Museum of Nuclear Science & History
Ossie Parker worked for the Edenfield Electric Company.
Margaret Strombeck was a swtichboard operator at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Miguel Romo was a staff worker at Los Alamos during the Manhattan Project.
Heffner worked at the 200 East Area at Hanford during the Manhattan Project.
D. W. McLean worked for the Tennessee Eastman Corporation at the Y-12 Plant.