Royal Roads Military College (RRMC) and its antecedents were located at Hatley Park from 1940 until its mandated federal closure in June 1995. Cadets attended classes, trained and lived on the campus. The college first was housed in Hatley Castle, with the Grant block being built for classroom and barack space in 1943. Two additional buildings were built for the cadets, and many on site buildings were adapted for use by the college.
Dr Waddell taught physics.
Michael Caines was the Commandant of RRMC in the early 1990s.
Gavin Bruner was Bandmaster for RRMC band
Gordon Francis Dalsin was a math teacher at RRMC from 1948 to 1978.