National Museum of Nuclear Science & History
M. L. Oliphant worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.
Luis Alvarez (1911-1988) was an American experimental physicist and winner of the 1968 Nobel Prize in Physics.
Merrill worked in the 300 Area at Hanford during the Manhattan Project.