National Museum of Nuclear Science & History
Butt worked in the United States Engineer District Office.
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.
Frances "Fran" Carroll worked as an operator, supervisor, and research assistant in the Columbia University Laboratory and at Oak Ridge, Tennessee.
