It is named after a Basilian Father and founder of the Pontifical Institute of Mediaeval Studies, Henry Carr (1880–1963).

Carr offers the Advanced Placement (AP) academic program and is known for its elite basketball team.

However, in 1988, nearby Humbergrove Secondary School, built in 1966 on Martin Grove Road, was closed and reopened by the MSSB as Marian Academy with 165 pupils.

The new Carr campus, at the cost of $10 million, consisted of the new main entrance, central community atrium, cafeteria, drama studio, labs, three automotive bays, new windows, stonework and landscaping.

Extra-curricular activities include dramatic productions, art exhibits, drum-line and musical performances.

It offers sports such as basketball, hockey (not since 2005), football, softball, cricket, track and field, volleyball, badminton, cross-country, and swimming.

[5] The FHC Crusaders founded the prep program in 2015-16, the same year they captured the OFSAA "AAA" title.

[6] The Crusaders Basketball teams host their home games in the Father Ted McLean Gymnasium, dedicated by then-principal Michael Rossetti in 2012.