After Bishop's death in 1884, her husband Charles Reed Bishop carried out her will. Reverend William Brewster Oleson (1851–1915), former principal of the Hilo boarding school founded by David Belden Lyman in 1836, helped organize the schools on a similar model of European-American education. The original Kamehameha School for Boys opened in 1887; after it moved to a new campus, that site was later taken over by the Bishop Museum. The girls' school opened nearby in 1894. The preparatory school, originally serving grades K–6, opened in 1888 adjacent to the boys' school. By 1955, all three schools had moved to the current campus in Kapālama Heights. The schools became co-ed in 1965 In 1996, the school opened a campus on Maui, followed in 2001 by the campus on Hawaii.