Pacific No. 5565 belonged to one of the subclasses of Canadian National's K-3 class. She was built by the Grand Trunk Railway, a component of the later CNR, between 1910 and 1912. The K-3 4-6-2s had 73-inch drivers and 23x28-inch cylinders, and carried a boiler pressure of 195 pounds. They weighed 229,000 pounds and exerted 34,000 pounds of tractive effort. This photo may have been taken by my brother David in a late-1950s rail trip into Canada.