National Museum of Nuclear Science & History
Fred Smyth worked for the Tennessee Eastman Corporation at the Y-12 Plant.
James Roberts was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
J. J. De Groot worked for the J.A. Jones Construction Company.
Enrico Fermi (1901-1954) was an Italian physicist and recipient of the 1938 Nobel Prize in Physics. In 1942, Fermi relocated to the Chicago Met Lab, where he built an experimental reactor pile under Stagg Field at the University of Chicago.
