National Museum of Nuclear Science & History
M. R. Pierce worked for the Kellex Corporation at the K-25 Plant.
Harold Riley was an American chemical engineer. After graduating from North Carolina State College, Riley began his career working as a rayon technician at the DuPont Company.
H. E. Wentworth worked for the Roane-Anderson Company.
Andrew Stehney was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
