The Canadian National Railway system owned more 4-8-4s than any other railroad; counting those on the Grand Trunk and Grand Trunk Western, they totaled 203 engines. In honor of the formation of Canada they were originally called Confederation types, but later were known as the Northern type which was the usual designation. (Some U.S. railroads used distinctive regional names for this type, such as Dixie, Greenbrier, Niagara, Pocono, Wyoming and Golden State — later changed to "General Service" by the Southern Pacific.) Ken Kerr captured this image of CNR No. 6144 with a passenger train at London, Ontario, in 1939. Like many of the railroad's modern steam engines, No. 6144 sports an Elesco feedwater heater ahead of the stack, an outboard-journal pilot truck, and a Vanderbilt tender. This U-2-c class, outshopped in 1929 by Montreal Locomotive Works, had the Baker valve gear, but later CNR designs favored the simpler Walschaerts gear.