National Museum of Nuclear Science & History
H. L. Nussmeyer worked for the United States Engineer District Office.
Herbert M. Parker (1910-1984) was a British-American medical physicist. He worked at Chicago, Oak Ridge, and Hanford during the Manhattan Project, and is perhaps best known for inventing the rep (a precursor of the rad) and helping develop the rem to measure radiation dosage.
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.
