Mark was born in Larne but grew up mainly in Ballymoney, educated at the genuinely, non-contrived, integrated grammar school of Dalriada. His father is from the Cavan and his mother County Down. His father has a very poor view of the “Free State” into which he was born and brought up, while his mother being a Presbyterian from the Ards, although staunchly unionist, has a romantic view of the men of 1798, interspersed with her father’s my grandfather's role in the 1912-14 period. In his own words: "So my popular history is unionist with a recognition that my forefathers were probably not always that way inclined." Having studied and lived in England for 6 years Mark returned in 1990 and joined the UUP, was elected a councillor in 1997 and has subsequently moved out of politics and now works in public affairs.