the Director of the Junior School for all twenty years that it was in existence. In 1993 Appleby saw its first co-educational graduating class. By that fall, the school had taken on its present character of a completely co-educational school for students in grades 7 through 12. A fourth boarding residence, Baillie House, was also built for female students. In 2011, Appleby celebrated its 100th anniversary. Boarding As well as being a day school, boarding is offered from Grades 9 though 12 (7 and 8 can board but they live with faculty who live near campus) and there are numerous international students from over 20 countries attending Appleby. When the school first opened in 1911, boarding was mandatory. Less than half of students board. Since 1911 all students in their "Senior Two" (Grade 12) year are required to go into residence.. There are four houses in which Appleby's boarding students reside, and with which the day students are affiliated: Baillie House; Walker House; Colley House; and Powell's House. Baillie House is a girls' residence and named after a prominent family that has attended and supported Appleby for several generations. Walker House was one of three boys' residences before co-education and is now a girls' residence, and is named for the school's original benefactor, Sir Byron Edmund Walker. Colley and Powell's are boys' residences and are named for former Appleby Masters. T.B. Colley taught at Appleby for 35 years and was housemaster of School House, which was renamed in his honour in 1949. Vernon Powell received the Military Cross and died during World War I. Students are divided into their respective houses in "Upper One" (Grade 9) and participate in house activities throughout the year. Boarding students in Baillie House and Colley House have roommates. In Powell's House and Walker House, students may be eligible to have a single room without a roommate. Campus facilities The school has a main classroom building, dining hall, arena, five playing fields (one football size), five tennis courts, three squash courts, a gymnasium, a 20m swimming pool, four boarding houses and the Anglican John Bell Chapel, designed in the Westminster style. The chapel houses an Inuit-designed stained glass window, created on commission by Kenojuak Ashevak, O.C. As well, the south boundary of the campus runs along the shores of Lake Ontario, and a creek runs through the west side of campus, bordered by playing fields