Pere Marquette No. 1225 was built in 1941 by the Lima Locomotive Works for the Pere Marquette Railway, were it worked hauling freight in the mid 40s and 50s. 1225 was retired from active service 1951 and was sent to be scrapped in New Buffalo Michigan. In 1955 the locomotive was saved from scrap and was place on display at the Spartan Stadium in East Lansing, Michigan. In 1981 the 1225 was donated to MSTRP by MSU just off campus and was later moved to former Ann Arbor Railroad steam locomotive shop in Owosso, MI for restoration.
In November 1985, the 1225 moved under its own power for the first time since 1951, it's first train excursion serviced in 1988, a 12-mile (19 km) trial runs between Owosso and Chesaning. The locomotive ran until 2009 when it suffered a fuel failure during Train Festival 2009 and was unable to pull passenger trains during the event, it later suffered a second fuel failure in December 2009. 1225 went out of service in 2010 for it's 15-year inspection and it's overhaul with began in January 2010. It returned to service in late November 2013 for test runs and pulls it's first train since it's return to service. 1225 will run for another 15 years until 2028, when it's next overhaul work is due.
The only other Pere Marquette steam locomotive that still survives today is #1223, on display in Grand Haven, Michigan.
- In 2002, Warner Bros. approach the engine and had it's blueprints, image and sounds used for the 2004 Christmas Holiday film The Polar Express, starring Tom Hanks. Chris Van Allsburg the author of the original book stated that he use to play on the 1225 engine as a kid while attending football games in collage, and stated that he couldn't believe it's the same engine that was based on his book. However, the whistle in the film was provided by Sierra Railway No. 3.