National Museum of Nuclear Science & History
H. D. Collins worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Hardin worked in the United States Engineer District Office.
Arnold Swanson served in the Army at Los Alamos during the Manhattan Project.
Ethaline Hartge Cortelyou was a junior chemist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
