National Museum of Nuclear Science & History
Seymour worked at the 200 West Area at Hanford during the Manhattan Project.
Robert L. Butenhoff worked in the Instrument and Physical Measurements Group in Clinton Laboratories at the X-10 Reactor.
Francis Birch (1903-1992) was an American geophysicist. In 1942, Birch worked at the MIT Radiation Lab, which was tasked with radar development.