National Museum of Nuclear Science & History
M. O. Swanson worked for the United States Engineer District Office.
John C. Pennock attended Cornell University, where he studied engineering. He was a member of the Special Engineer Detachment at Oak Ridge, where he worked as a technical engineer at the K-25 Plant.
R. K. Dean worked for the Tennessee Eastman Corporation at the Y-12 Plant.
H. R. Muldoon worked for the Union Carbide & Carbon Corporation.