National Museum of Nuclear Science & History
Henry Linschitz worked in Project Alberta, which transported and assembled the Little Boy and Fat Man atomic bombs.
Arthur Levy was a member of the Special Engineering Detachment responsible for developing high explosive casting procedures for the Fat Man plutonium bomb at S-Site at Los Alamos.
John Brady served as a Machinist at the Hanford Nuclear Reservation from 1943 to 1960. He was proud of the work he did at Hanford, though it was always a mystery to his children because Brady wouldn't talk about his job.
Crowley worked in the United States Engineer District Office.