National Museum of Nuclear Science & History
J. T. Sevier worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Joseph Caldwell was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Edward P. Hayes was a laboratory assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
D. G. Decker worked for the Tennessee Eastman Corporation at the Y-12 Plant.