National Museum of Nuclear Science & History
E. P. Baker worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Ralph Nelson was a staff worker at Los Alamos during the Manhattan Project.
Earl Long was an American chemical physicist. He served as director of the University of Chicago Institute for the Study of Metals.
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.
William Hester worked for the Roane-Anderson Company.