National Museum of Nuclear Science & History
W. Petterson worked for the United States Engineer District Office.
Henry Faul was a geologist working on Enrico Fermi's team at the University of Chicago. He was responsible for prospecting uranium ore in Colorado and Utah.
D. W. McLean worked for the Tennessee Eastman Corporation at the Y-12 Plant.
A. C. Hudson worked for the Roane-Anderson Company.
