Joseph F. Coleman Jr.

J. W. Stein

J. W. Stein worked for the Union Carbide & Carbon Corporation.

L. Conway

Ed Hammel

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.

Harold C. Barr

Harold was a staff member at Los Alamos during the Manhattan Project.