National Museum of Nuclear Science & History
Glenn Sprankle worked in the shop at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Robert JS Brown was a member of the Special Engineer Detachment at Los Alamos. He worked under Don Hornig on the electrical aspects of detonation for the plutonium bomb.
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.