National Museum of Nuclear Science & History
Hughes worked for Stone and Webster Engineering Corporation.
A. E. Ballard worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Hasselblad worked at the 100-F Area at Hanford during the Manhattan Project
Roy V. Henderson was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Dunbar worked in the United States Engineer District Office.
