National Museum of Nuclear Science & History
Delmar Russell worked for the United States Engineer District Office. He arrived in February 1943.
Robert JS Brown was a member of the Special Engineer Detachment at Los Alamos. He worked under Don Hornig on the electrical aspects of detonation for the plutonium bomb.
Sonia Weiner Katz was a secretary in the Chemistry Division of the Chicago Met Lab during the Manhattan Project.
