National Museum of Nuclear Science & History
R. B. Jacobs worked for the Kellex Corporation at the K-25 Plant.
William P. Sensibaugh served in the 1027th Air Material Squadron.
Leonard worked in the 300 Area at Hanford 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.