National Museum of Nuclear Science & History
C. E. Bettis worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Crowley worked in the United States Engineer District Office.
Jack L. Callan was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
H. C. Smith worked for the United States Engineer District Office.
L. J. Ritter worked for the Roane-Anderson Company.
