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In the late 1960s, Mr. Al Leary opened the Leary School in Falls Church, Virginia, to serve seriously emotionally disturbed adolescent boys. The Leary Educational Foundation was incorporated in 1969 to operate boarding and day schools to help underachieving students reach their potential. Recognizing a need in some students for a more intensive and comprehensive approach, Mr. Leary created the Leary Educational Center in 1971 in Northern Frederick County. With just a handful of students, this residential school became Timber Ridge School in 1977.

Since then, Timber Ridge School has operated continuously as a residential treatment center serving emotionally disturbed and behaviorally disordered adolescent boys. As our population expanded, so did our campus, with the addition of seven dormitories, two school buildings, a dining hall, an administrative building, a pavilion and a gymnasium. Our beautiful campus also has football and baseball fields, as well as tennis courts. In 2023, a career and technical education facility, CTE Trade Academy at TRS, will open to provide our students with skills for the future.