National Museum of Nuclear Science & History
J. R. Hatfield worked for the Tennessee Eastman Corporation at the Y-12 Plant.
J. G. Smith worked for the Roane-Anderson Company.
N. B. Newcomb worked for the Kellex Corporation at the K-25 Plant.
Bert Tolbert joined the Manhattan Project in 1944 while completing his PhD in Chemistry from the University of California at Berkeley.
George Economou was an optical systems expert. Economou graduated from Harvard University with a degree in astronomy.