National Museum of Nuclear Science & History
Leon Harwell served in the 1395th Military Police Company, Aviation.
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.
N. A. Powell worked for the Kellex Corporation at the K-25 Plant.