National Museum of Nuclear Science & History
Ed Helfenberger worked for the Roane-Anderson Company.
John P. McBride was a research assistant in the Chemistry Division at the Chicago Met Lab. He was later assigned to Oak Ridge, where he worked on plutonium purification and on isolating uranium-233 isotopes from thorium.
Attended Cornell University.
Roland Kreuger worked for the Tennessee Eastman Corporation at the Y-12 Plant.
