National Museum of Nuclear Science & History
J. H. Neumann worked for the J.A. Jones Construction Company.
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.
T. H. Berry worked for the Edenfield Electric Company.