National Museum of Nuclear Science & History
H. H. Maples worked for the Roane-Anderson Company.
Wilcox P. Overbeck was a research associate and instrumentation designer at the Chicago Met Lab. He was responsible for calling out the neutron count when Chicago Pile-1 went critical on December 2, 1942.
J. H. Marsh worked for the Kellex Corporation at the K-25 Plant.
Brown worked in the United States Engineer District Office.
J. E. Grumbach worked for the Edenfield Electric Company.