National Museum of Nuclear Science & History
John Horan worked for the United States Engineer District Office.
M. A. Campbell worked for the Roane-Anderson Company.
Stanley A. Kiedrowski served as a sergeant in the 393rd Bombardment Squadron.
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.
