Mark spent eight years as an infantry officer in the British Army, was briefly a management consultant, and then spent 25 years working in boarding schools; he was the Head of three BSA and HMC schools in both England and Scotland and was also the HMC Representative to the CCF Association and to the Armed Forces. He spent ten years on the HMC Professional Development Committee, was an ISI inspector, and a board member of the Scottish Council for Independent Schools (SCIS). He has twice rowed across the Atlantic, completed the Marathon des Sables and cycled through the Arctic Circle.
