National Museum of Nuclear Science & History
Ruth Langley worked for the United States Engineer District Office.
H. R. Elliott worked for the Fercleve Corporation.
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.
Myra Bothwell worked for the J.A. Jones Construction Company.