National Museum of Nuclear Science & History
Hayes worked in the United States Engineer District Office.
John Mench was assigned to the Special Engineer Detachment at Los Alamos where he worked as a pattern maker, creating wooden casts for metal work at the site’s foundry.
George Francis McEwen was born on June 16, 1882 in Manchester, Iowa. He attended Iowa State College.
Albert S. Kerns was a mechanical engineer assigned to the SED (Special Engineer Detachment) at Los Alamos, New Mexico.
