Bob Mcleod, Chris Claremont
Chris Claremont, Marc Silvestri
Marvel Graphic Novel #4 - The New Mutants: Renewal
Uncanny X-Men #221 (September, 1987)
(current) X-Factor Investigations, New York City (former)Professor Xaviers School of Gifted Youngsters, Salem Center, Westchester County, New York; Muir Island, Scotland; X-Factor headquarters, Embassy Row, Washington, D.C.; X-Factor Headquarters, New Yo
Many bases throughout the world including his State Home for Foundlings and the Center for Homo Superior Medical Care.