National Museum of Nuclear Science & History
Mattie was a staff member at Los Alamos during the Manhattan Project.
J. B. Livingston worked for the Roane-Anderson Company. He was the first civilian employee on the ground at Oak Ridge.
Ercole E. Motta was a research assistant at the University of Chicago Met Lab. He studied ways to determine the boron content of uranium oxide.
Ernest Bray worked for the Roane-Anderson Company.
