National Museum of Nuclear Science & History
Leslie Seward worked for the United States Engineer District Office.
Alan Vorwald was a mathematician in the Special Engineer Detachment at Los Alamos. Vorwald was a part of the theoretical physics division under Hans Bethe and Richard Feynman, specializing in the computing department.
Fay Cunningham joined the Manhattan Project in 1944 as a metallurgical engineer at the Massachusetts Institute of Technology, as part of the Special Engineer Detachment.