National Museum of Nuclear Science & History
C. H. Pearson worked for the Kellex Corporation at the K-25 Plant.
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.
Geiger worked in the United States Engineer District Office.
O. N. Hall worked for the Tennessee Eastman Corporation at the Y-12 Plant.
