National Museum of Nuclear Science & History
Lt. Col. James Iredell Hopkins, Jr. served in the 509th Headquarters and Base Services Squadron.
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.
Emma Tolmach was a technician in the Chemistry Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
