Obviously a writer credit for one of the members of DBL Crew

Mark Sutton (2) British sound engineer of classical recordings.
Mark Sutton (3) Guitarist, Keyboarder, Singer and Songwriter for the Boston rock band Rings
Mark Sutton (4) Guitarist, credited on a recording - most likely 60s - at Americana Recording Studios in Ruston, Loisiana
Mark Sutton (5) Photographer credit for a DC based garage band in 1980
Mark Sutton (6) Australian musician, percussion credit from 1994 and a engineer credit in 2013
Mark Sutton (7) Guitarist of the Hardcore band Red Handed (3)