National Museum of Nuclear Science & History
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.
Ples M. Cheek served in the 1st Ordnance Squadron.
Charlie Stallings was a staff member at Los Alamos during the Manhattan Project.
J. R. Brand worked for Clinton Laboratories at the X-10 Reactor.