National Museum of Nuclear Science & History
S. M. MacNeille worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.
R. R. Tippy worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Tom Norvelle served in the Army at Los Alamos during the Manhattan Project.