National Museum of Nuclear Science & History
John Horan worked for the United States Engineer District Office.
Paul Willard was a staff worker at Los Alamos during the Manhattan Project.
Seymour Bernstein (1923-2015) was an American chemical engineer who worked on the Manhattan Project. He was a member of the Special Engineer Detachment at Oak Ridge and worked as a laboratory supervisor at the K-25 Plant.
Ethaline Hartge Cortelyou was a junior chemist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
