Leighton B. Ewell

Henry Robert Barwick

Henry Barwick worked as a plumber, pipefitter, and steamfitter during the building of the Y-12 plant at Oak Ridge.

Ernest W. Titterton

Ernest William Titterton was a British nuclear physicist who worked on the Manhattan Project as part of the British Mission to Los Alamos.

Leo Lowe

Jane Roberg

Jane Roberg was an American physicist. She earned a Ph.D. from Duke University and was working at the University of California when she was recruited to work on the Manhattan Project at Los Alamos.