National Museum of Nuclear Science & History
W. R. Roseberry worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Duke worked for Stone and Webster Engineering Corporation.
Walter Youngs, Jr. worked for the United States Engineer District Office.
Edward Shapiro was an American scientist and Manhattan Project veteran. After receiving a Ph.D. from Purdue University, Shapiro worked as a research associate for the Manhattan Project at the Metallurgical Laboratory in Chicago and at Oak Ridge.