National Museum of Nuclear Science & History
Marjorie Richmond was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
George Tilley was a staff worker at Los Alamos during the Manhattan Project.
G. B. McConnell worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Nelson C. Baker was a lieutenant working as an executive officer to Captain Palmer in the Second Provisional Special Engineer Detachment at Los Alamos.