Additional Greystone Students Earn Appointments May 4, 2021 Posted in About Three more students from the Greystone Preparatory School at University of the Ozarks recently learned they had received appointments into a U.S. military service academy. Those students were (pictured from left) Anthony Chambers of Denver, Col.; Jackson Collier of Danville, Calif.; and Benjamin Johnson of Jackson, Miss. The students are enrolled in Greystone, a one-year, college-level academy prep school that prepares students for nomination, appointment and success at one of the country’s five military service academies. Greystone moved to the U of O campus in 2020 after spending the past 16 years in Texas.