National Museum of Nuclear Science & History
G. E. McAllister worked for the United States Engineer District Office.
Roy Greenlee was a chemist at the University of Chicago Metallurgical Lab and at Oak Ridge, Tennessee.
Charles Cooper was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Frederick Kalinoff worked for the Roane-Anderson Company.
Sampson Powers worked for the Tennessee Eastman Corporation at the Y-12 Plant.