Bibliography Thompson, Milton O. (1992). At The Edge Of Space: The X-15 Flight Program, Smithsonian Institution Press, Washington and London. External links Astronautix biography of John B. McKay Spacefacts biography of John B. McKay McKay page at Astronaut Memorial 1922 births 1975 deaths American aerospace engineers American test pilots Engineers from Virginia NASA civilian astronauts People from Portsmouth, Virginia Recipients of the Air Medal 20th-century American engineers United States Naval Aviators United States Navy officers United States Navy pilots of World War II Virginia Tech alumni X-15 program People who have flown in suborbital spaceflight