During World War II, the property was used by the United States Army and then the Royal Australian Air Force as No. 4 Embarkation Depot (4 ED), and the school was forced to move to Birralee, Belair and Brierly Lodge from May 1942 to February 1944. "Gratton House", now the Middle School, was built as a memorial to 57 Old Collegians who were killed in World War II. Scotch recruited Charles Fisher, who had previously been a master at Harrow School and the son of the Archbishop of Canterbury Geoffrey Fisher, to be its third Headmaster. Fisher has been described as: a conservative... a manager rather than a thinker. Despite personal optimism, he was pessimistic about encouraging young people to think independently when so many were obviously destined to work in hierarchical institutions. His rather bland desire for his school was that it should balance the development of individuality with the inculcation of attitudes and skills useful to the community, the nation and the world. Fisher served as headmaster from 1962 to 1969. The Australian Dictionary of Biography described that "he transformed [the school], economically and educationally, by adding a new junior school, science laboratories and a chapel, and by instituting a comprehensive outdoor programme and making strong staff appointments." At the end of 1965 the junior school was instituted as a separate school from the senior College. In 1968 construction of the College Chapel was completed. Previously, students had walked to Hawthorn Presbyterian Church for religious services. The College acquired the lease to Goose Island in 1966, and has incorporated trips there as part of Outdoor Education since. The college further expanded its outdoor and environmental education with the acquisition of its Kyre Campus on Kangaroo Island in 2004, which was included in the curriculum until 2019. In 1972 the College became co-educational under the reformist Headmaster Philip Roff, and the Middle School was founded the following year. Initially the Middle School consisted of years 7 and 8; in 2002 Year 9 was added to the Middle School. In 1977 the Presbyterian Church of Australia merged with the Methodist and Congregational churches to form the Uniting Church of Australia and Scotch College changed its religious affiliation accordingly. Today, the College is administered by a Council of Governors in connection with the Uniting Church in Australia. The school maintains its church affiliation, but religion plays a significantly diminished role in