National Museum of Nuclear Science & History
W. E. Weatherwas worked for the Midwest Piping and Supply Company.
Greenhalgh worked in the United States Engineer District Office.
Evelyn O. Gaston was a laboratory technician in the Health Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
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.