parents Grand Trunk Railway and Canadian National. Its locomotive road numbers would also be integrated into CN's roster sequence. By the first half of the 20th century, the railroad's largest steam power would be its Northern type locomotives, called Confederations by CN. The locomotives, built by the American Locomotive Company in the 1930s and 1940s, had driving wheels with 60,000 pounds of tractive effort and would be used in mainline freight and passenger service. Six GTW U-4-b class s built by Lima Locomotive Works would have streamlined shrouding and driving wheels, to be used only in passenger service. Other steam locomotives in GTW's fleet at the time included the Mikado type 2-8-2s built by Baldwin Locomotive Works and Alco, primarily used in mainline freight service. Pacific type and Mountain type locomotives, also built by Baldwin and Alco in the 1920s, and Ten-Wheelers built around 1900 began in mainline service but later were eventually both found mostly on branch lines and mixed train service. GTW also had a variety of other models of steam engines, including several 0-8-0 and 0-6-0 switching locomotives used to move rolling stock around in rail yards. Surviving steam locomotives Some of GTW's steam engines survive today as static park displays or in operation. Three are park displays in Michigan; they include two "Pacifics" at Durand and Jackson and an at Sidney Montcalm Community College Heritage Village. Steamtown National Historic Site has GTW #6039, a U-1-c class Mountain type. The Illinois Railway Museum in Union, Illinois has #6323, a U-3-b class , and #8380, a P-5-g class , as part of its collection. Locomotive #4070, an S-3-a Light Mikado, has been used in excursion service by the Midwest Railway Preservation Society and is now being restored back to service in Cleveland, Ohio. As of 2012, the only operating former GTW locomotive is the U-3-b class #6325 on the Ohio Central System. One of the two s in Michigan, J-3-b No. 5030, was purchased by the Colebrookdale Railroad, which has the intent of restoring it to operating condition after moving it to Boyertown, Pennsylvania. Although there was a third Pacific, K-4a 5629, that was used on excursions from the 60's to 70's, it was scrapped in July 1987, in Blue Island, Illinois. Diesel The first diesel locomotive to operate in regular service in Michigan arrived in 1938. It was GTW 7800, an EMC SC switching locomotive to work