National Museum of Nuclear Science & History
Seymour worked at the 200 West Area at Hanford during the Manhattan Project.
Phelps worked in the 100 F Area at Hanford during the Manhattan Project.
Richard Claassen was a research assistant at the SAM Lab at Columbia University from 1944 to 1946. While there, he built and used fluidic systems to test for unusual leaks in diffuser tubes.
