In January, 1967, Harris Pine Mills assumed management of the factory and it continued to provide work experience to the Academy until December, 1986, when it closed.

[10][11] The enrollment in 1969 had increased to 569 students making it the largest Adventist boarding school in North America.

[6][10] A large auditorium, seating over 4,000, was constructed on the Academy campus in 1958 by the Washington Conference for use during the annual camp meeting.

[14] Major construction began in 1962 with the building of Witzel Hall, the boys' dormitory, resulted in the expenditure of over a million dollars and a shift of the campus towards the south.

[11] The Miller Aquatic Center, which includes a swimming pool with lockers, shower rooms, and physical education personnel offices adjacent to the school gymnasium, Rainier Auditorium, was opened in 1969.

In 1974, students raised a substantial part of the funds for a new industrial arts complex named Spady Hall.

Late in 1986, Harris Pine Mills of Pendleton, Oregon, since 1967 the mainstay of the Academy's student work program, closed.

Instructors in other disciplines also begin each class period with prayer or a short devotional thought, many which encourage student input.