National Museum of Nuclear Science & History
Everett Ellis worked for the H. K. Ferguson Company.
C. E. McGill, Sr. worked for the Kellex Corporation at the K-25 Plant.
G. Z. Barton worked for the Poe Piping & Heating Company.
Benjamin Nelson served in the Army at Los Alamos during the Manhattan Project.
J. R. Maddy worked for the United States Engineer District Office.