National Museum of Nuclear Science & History
R. W. Hamer worked for the Roane-Anderson Company.
A. V. Henrickson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Born in 1903 in Baltimore, Mackie studied civil engineering at Union College in Schenectady, New York.
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.
