The Steam Railroading Institute in Owosso is home station for the Pere Marquette 1225 locomotive aka the Polar Express:
Retired from service in 1951, 1225 was sent to scrap, in New Buffalo, Michigan. In 1955, Michigan State University Trustee, Forest Akers was asked by C&O Chairman Cyrus Eaton if the University would be interested in having a steam locomotive (Eaton did not want to scrap the engines but was having a hard time finding places that would accept them) so that engineering students would have a piece of real equipment to study. Forest Akers thought it a good idea and proposed the idea to University President John Hannah. John Hannah accepted the gift of the locomotive. When he told the Dean of the College of Engineering about the gift, the Dean said that Engineering was not interested in an obsolete locomotive. John Hannah then called up Dr. Rollin Baker, director of the MSU Museum and told him that he was getting a locomotive. The C&O then instructed the yardmaster at New Buffalo to send an engine to the Wyoming Shops for a cosmetic restoration and repainting with the name Chesapeake and Ohio on the side. The 1225 was the last engine in the line, i.e. easiest to get out. It had nothing to do with the number representing Christmas Day.
Baker received the gift of the locomotive in 1957 when it was brought to campus. The locomotive remained on static display near Spartan Stadium on the Michigan State campus in East Lansing, Michigan for a decade. While on display, a child by the name of Chris Van Allsburg used to stop by the locomotive on football weekends, on his way to the game with his father. He later stated that the engine was the inspiration for the story, Polar Express.
Lots more about the Michigan’s largest operating steam locomotive at Wikipedia and information about riding the train and the rest of their collection at the Steam Railroading Institute.