National Museum of Nuclear Science & History
Frank Harrison worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Donald W. Vester served in the First Ordnance Squadron.
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.
Albert Rapp worked for the United States Engineer District Office.