No. 6407 was used for passenger service for the Grand Trunk Western Railroad.
It was also often used to haul freight trains due to many GTW Northerns being occupied pulling passenger trains; in later years, diesel-electric locomotives hauled the passenger trains.
This locomotive was retired from service in 1959 and it was sold for Scrap.
In the Thomas and Friends film "The Great Race", the character Vinnie, is designed as Grand Trunk Western No. 6407. He is portrayed as a bully.