National Museum of Nuclear Science & History
I. A. Butcher worked for the Kellex Corporation at the K-25 Plant.
Clementson worked at the 100-B Area at Hanford during the Manhattan Project.
John Douglas Cockcroft was a British physicist and recipient of the 1951 Nobel Prize in Physics. He was a member of the Tizard Mission to the United States in the autumn of 1940.
