National Museum of Nuclear Science & History
John Black worked for the J.A. Jones Construction 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.
Cash worked as an operator at the Y-12 plant at Oak Ridge during the Manhattan Project.
Harold McCurdy worked for the Tennessee Eastman Corporation at the Y-12 Plant.
