Labour unrest did not come to
Source: Kealey, p 16
Vancouver already had a one-day general strike in August 1918. February 1919's Seattle General Strike, (also), saw 100,000 people walk off the job and is actually considered the first "general strike" the U.S. ever had. Hundreds of strikes also took place in Canada in the years preceding 1919.
Some say that the seeds of the General Strike were sown in 1906 during the bitter Winnipeg Streetcar Strike (page 15). Other industries such as textiles and metal workers struck on and off as well.