National Museum of Nuclear Science & History
Grafton worked in the United States Engineer District Office.
Arthur S. Opsahl served in the 603rd Air Engineering Squadron.
George Koval was an American chemical engineer and one of the most important Soviet spies of the 20th century.
David Holcomb is nuclear engineer who specializes in instrumentation and controls for the molten salt reactors at the Oak Ridge National Laboratory (ORNL).
