National Museum of Nuclear Science & History
H. C. Smith worked for the United States Engineer District Office.
C. M. Nelson worked for Clinton Laboratories at the X-10 Reactor.
Arthur M. Ross was born in Revere, MA. He attended the Massachusetts Institute of Technology. During the Manhattan Project, he served in the Special Engineer Detachment at Oak Ridge, TN at the X-10 Graphite Reactor.
Opal MacDonald was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
