Captain John H. Ebersole, M.D., MC USN (26 January 1925 – 23 September 1993) a pioneer in submarine medicine and radiation oncology. Ebersole was the radiologist responsible for the x-rays taken during the autopsy of John F. Kennedy on 22 November 1963 at Bethesda Naval Medical Center. He was a radiologist for NASA that screened the Mercury Seven astronauts for Project Mercury.