National Museum of Nuclear Science & History
Ernest Bray worked for the Roane-Anderson Company.
Ethaline Hartge Cortelyou was a junior chemist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Clarence Signaigo was a laboratory helper at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Larue Tinsley served in the Army at Los Alamos during the Manhattan Project.
