National Museum of Nuclear Science & History
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.
Max Rogers worked for the United States Engineer District Office.
Andrew Rubis served in the First Ordnance Squadron.
Frank Cook worked for the JA Jones Construction Company in Oak Ridge, Tennessee during the Manhattan Project.