National Museum of Nuclear Science & History
Howard Lange was the Curator in the Chemistry Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Helen J. Arson was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Harlan Johnson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
S. L. Eisler worked for the Union Carbide & Carbon Corporation.