Did anyone see the Disneyland Railroad run during the 24 hours for the One More Disney Day. I know that the line up was:
3 Fred Gurley w/ Holiday V
5 Ward Kimball w/ Holiday IV Lilly Belle
2 EP Ripley w/ Excursion III

I am curious as to how they did this, the engines probably were kept fired for the next operating day since it was only 4 hours.

There's no real need to keep an engine fired. You can cap the stack and turn everything off. She'll keep most of that pressure bottled up like that, so it's an easy thing just to light off again when she's needed.