Chris Claremont, Paul Smith
Chris Claremont, Herb Trimpe
Xavier Institute, Salem Pusat, Westchester County, New York State, (mantan) The Alley (di bawah Manhattans permukaan), X-Factor Apakah kapal luar angkasa hidup
Xavier Institute, Salem Pusat, Westchester County, New York sebelumnya Braddock Manor, Inggris Raya; Outback Australia