National Museum of Nuclear Science & History
R. E. Graves worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Cornelius worked in the United States Engineer District Office.
O'Brien worked for Stone and Webster Engineering Corporation.
Edward Denari worked for the Kellex Corporation at the K-25 Plant.
Evelyn O. Gaston was a laboratory technician in the Health Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.