George Papp, Mort Weisinger
Chris Claremont, Paul Smith
More Fun Comics #73 (November, 1941)
The Uncanny X-Men #169 - Catacombs
Star City, California; Formerly Seattle, Washington
The Xavier Institute, Salem Center, Westchester County, New York State, (former) The Alley (beneath Manhattans surface), X-Factor Is sentient starship