National Museum of Nuclear Science & History
E. S. Ethridge worked for the Tennessee Eastman Corporation at the Y-12 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.
Sam Sandoval was a staff worker at Los Alamos during the Manhattan Project.
P. V. Weaver worked for the United States Engineer District Office.
Leahy worked for Stone and Webster Engineering Corporation.