The school is built on a hill in a residential neighborhood in old Barrhaven and is named after Lieutenant Colonel John Alexander McCrae, MD (November 30, 1872 – January 28, 1918), a Canadian poet and doctor during World War I who wrote the poem "In Flanders Fields".

Members of this group mentor incoming Grade 9 students and also organize school-wide events throughout the year, such as the Haunted House, Remembrance Day Ceremony, and Santa's Workshop.

It was implemented to recognise talented student-athletes who require specialised accommodation and flexibility to ensure they reach the high standards expected in their field, while still receiving excellent education[2] John McCrae has an extensive art program.

On multiple occasions each year, the Red Poppy Gallery showcases artworks by students from the advanced art classes open to anyone starting in grade 11.

The council is made up of elected representatives from each grade who work to organize events and initiatives that promote school spirit and student involvement.