National Museum of Nuclear Science & History
A. Castle worked for the Roane-Anderson Company.
Duane Sewell began working with the Manhattan Project in 1941. He was one of the first people to arrive at Oak Ridge and experienced first-hand some of the difficulties there with cyclotrons and isotope separation.
Samuel Proctor Massie Jr. (1919-2005) was an African American chemist who worked on the Manhattan Project.
