National Museum of Nuclear Science & History
H. R. Pancoast worked for the Comstock-Bryant Electric Company.
H. S. Mantooth worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Jack L. Callan was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
D. S. Pattershall worked for Clinton Laboratories at the X-10 Reactor.
