Hugo Griep

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.

John R. Leary, Jr.

John R. Leary Jr. was an American chemical engineer. He worked as a Shift Supervisor at the X-10 Plant, and as a research chemist in Building 205, at Oak Ridge.

John F. Manthey

John Manthey worked for the United States Engineer District Office.

E. L. Monk