X-Men Omnibus #1

Werner Roth, Alex Toth, Roy Thomas, Stan Lee, Jack Sparling with Jack Kirby (Illustrator)

X-Men Omnibus #2

George Tuska, Roy Thomas with Ross Andru, Barry Windsor-Smith, Dan Adkins, Jim Steranko, Jerry Siegel, Neal Adams, Sal Buscema, Gary Friedrich, John Buscema, John Verpoorten, Denny O'Neil, Don Heck, Werner Roth, Linda Fite, Tom Sutton, Arnold Drake, Chris Claremont