National Museum of Nuclear Science & History
Grace Wallace 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.
Nelen Supert was a stenographer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
John P. Echert served in the 393rd Bombardment Squadron.
