National Museum of Nuclear Science & History
Esther Turovlin worked on the Manhattan Project at Chicago as a secretary, including for Enrico Fermi.
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.
Clarke worked in the United States Engineer District Office.