John MacLachlan Roy McComish was a Scottish educator, headmaster, artist and British Army officer who founded the independent boarding school Box Hill and served as its first headmaster. Prior to founding Box Hill, McComish was a housemaster and art master at Gordonstoun, an independent school in Scotland, and he included some of that school's educational ideas in the formation of his own school. As headmaster of Box Hill, McComish was one of the founding headmasters and leading organisers of the Round Square, an international network of schools, based on the educational concepts of Kurt Hahn founder and headmaster of Gordonstoun. Utilising his skills as an artist McComish designed the associations logo.

Box Hill School is an independent coeducational boarding and day school situated in the village of Mickleham near Dorking, Surrey, England. The school has approximately 425 pupils aged 11–18. 70 percent of students, are day students while the remaining 30 percent are either weekly boarders or full boarders. Fees for day pupils start at £21,120 per year, and full boarding fees start at £35,145 per year. The school is a founding member of the Round Square Conference of Schools, as well as being a member of the Headmasters' and Headmistresses' Conference.