National Museum of Nuclear Science & History
E. S. Ethridge worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Bumpus worked at the 100-B Area at Hanford during the Manhattan Project.
John “Jack” Carleton Healey, a colonel in the U.S. Air Force, participated in the Manhattan Project as part of General Groves’ staff in Washington, DC.
Marion L. Arnold was a staff member at Los Alamos during the Manhattan Project.
