This resource includes information about the graves of 1.7 million service people who died in both World Wars. Try searching the site by surname.
From the website:
The Maple Leaf Legacy Project is an enormous volunteer endeavour to procure a photograph of each and every Canadian War Grave from the South African War (1899-1902), World War 1 (1914-18), World War II (1939-45), Korean War (1950-52) and all United Nations Peacekeeping Missions to the present day conflict in Afghanistan.
Contains sections on the Northwest Rebellion, the South African War, the First and Second World Wars, and the Korean War. Archived content from the LAC.