In 1963 the Marlborough Girls' College was founded and Marlborough Boys' College continued on the original site. The first official discussion on the division of the college having taken place in June 1947. Mr Insull, the Headmaster at the time, suggested that “the time would come when the board would have to consider the question of separate boys’ and girls’ schools … and that the girls school might be established on the other side of town (Mclauchlan Street)". (Marlborough Express, June 10, 1947)