National Museum of Nuclear Science & History
H. A. Rehnberg worked for the Kellex Corporation at the K-25 Plant.
Margaret M. Emmerson was a technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Charles Swartout worked for the United States Engineer District Office.
P. W. Rueff worked for the Tennessee Eastman Corporation at the Y-12 Plant.
