National Museum of Nuclear Science & History
Dana Mitchell was an American physicist. He was in charge of procurement for the physics department at Columbia University during the first year of the Manhattan Project.
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.
A. K. Ericson worked at the 100-F Area at Hanford during the Manhattan Project.