Peter Sam is a Kerr Stuart "Tattoo" class engine
Stuart was built at Kerr Stuart works in 1921 for the Mid-Maine Railway. After the line closed in 1947, he and Falcon were sold to The Quarry Beneath the Hills. After in 1951, they were sold to MR Railways, who absorbed the Quarry and renamed him Peter Sam. Stuart has had many adventures, most notable being losing his funnel in a tunnel after an accident. He now has a Giesl oblong ejector, which suits him quite well.
Stuart is enthustiastic, eager, and bubbly. He is cheeky, teasing, and slightly cocky, but is kind, well meaning, and good natured. He can be naive at times, however.