National Museum of Nuclear Science & History
R. M. Van Petten worked for the Kellex Corporation at the K-25 Plant.
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.
Betty Utterback was a staff worker at Los Alamos during the Manhattan Project.
