National Museum of Nuclear Science & History
H. A. Ramsey worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Rudolph W. Hogg served in the 1st 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.
Arthur S. Opsahl served in the 603rd Air Engineering Squadron.