National Museum of Nuclear Science & History
Ray Mettelka worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Dennis Dwyer was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Minnie M. Daniels was a laboratory technician and assistant in the Chemistry Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
