Cooerwull was founded in 1882 by the Scottish pastoralist and industrialist, Andrew Brown, who was also the Lithgow Valley's first European settler. The school, which was originally intended to be a training academy for prospective Presbyterian ministers, was the first Presbyterian school established in New South Wales.
Cooerwull attended the initial meetings resulting in the formation of the Athletic Association of the Great Public Schools of New South Wales but didn't take part in any of the association's events. It was attached to St Andrew's College at the University of Sydney, which was also founded by Andrew Brown.
The Academy ceased operating when most of its staff and some students enlisted to fight in the First World War. It then became a private residence, and in 1953 the site was converted into the Catholic, La Salle Academy, which is still in operation today.
- Thomas Simpson Crawford QC - Presbyterian minister; Member of the NSW Legislative Assembly for the seat of Marrickville; Crown Prosecutor
- William Montgomerie Fleming - Member of the NSW Legislative Assembly for the seat of Robertson and seat of Upper Hunter; Member of the House of Representatives as the member for the Division of Robertson; Writer
- John Ross OBE - Member of the NSW Legislative Assembly for the seat of Albury; Member of the Nationalist Party of Australia
- LaSalle Academy Lithgow: History of the Academy (accessed:04-08-2007)
- Greater Lithgow: Andrew Brown (accessed:04-08-2007)
- University of South Australia: THESES (accessed:04-08-2007)
- Australian Dictionary of Biography: Crawford, Thomas Simpson (1875 - 1976) (accessed:04-08-2007)
- Australian Dictionary of Biography: Fleming, William Montgomerie (1874 - 1961) (accessed:04-08-2007)
- "Mr John Ross". Former Members of the Parliament of New South Wales. Retrieved 26 June 2019.