National Museum of Nuclear Science & History
Branch worked for Stone and Webster Engineering Corporation.
Stratton worked at the 100-F Area at Hanford during the Manhattan Project.
H. O. Arnold worked for the Kellex Corporation at the K-25 Plant.
George Koval was an American chemical engineer and one of the most important Soviet spies of the 20th century.
J. M. Comly worked for the Tennessee Eastman Corporation at the Y-12 Plant.