National Museum of Nuclear Science & History
J. E. Mason worked for the Roane-Anderson Company.
Warren Nyer (1921-2016) was an American physicist. Nyer was nineteen and studying physics at the University of Chicago when he was hired as a research assistant with the Office of Scientific Research and Development, an early part of the bomb-building program.
E. M. Kelman worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Leinhart worked in the 300 Area at Hanford during the Manhattan Project.