Seamus Mellencamp

The Uncanny X-Men (1981)

X-Factor (1986)

X-Men (1991)

All-New Official Handbook of the Marvel Universe A to Z (2006)

X-Men: Legacy (2008)

X-Necrosha (2010)

X-Men: Fatal Attractions (2012)

X-Factor Epic Collection (2017)

X-Factor by Peter David Omnibus (2021)