Simple, the ET&WNC.
It was a 3-footer that ran near where my parents grew up, they have amazing scenery, vestibuled passenger cars, TOFC as early as the 1930s and commuter wartime service.
Once the 3-footer was a memory, they still ran steam until 1967, interchanging with other steam (a rayon mill fireless loco that ran into the late 80s).
