National Museum of Nuclear Science & History
H. G. Singleton worked for the Roane-Anderson Company.
Edward F. “Ed” Hammel was an American chemist. Hammel had just completed his Ph.D. at Princeton University when he joined a Canadian heavy water project sponsored by the school in 1941.
Marion L. Arnold was a staff member at Los Alamos during the Manhattan Project.
Dale M. Brown served in the 320th Troop Carrier Squadron.
