National Museum of Nuclear Science & History
H. L. Ray worked for the Kellex Corporation at the K-25 Plant.
L. L. Lee worked for the United States Engineer District Office.
W. B. Steur worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Roberta A. Edwards was a lab technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
