National Museum of Nuclear Science & History
E. S. Ethridge worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Gavin Hadden was an American civil engineer who served as special assistant to General Leslie R. Groves during the Manhattan Project.
Robert worked in the 300 Area at Hanford during the Manhattan Project.
Chalgren worked at the 200 West Area at Hanford during the Manhattan Project.
