Jace, This model is very similar to the NYC G46 class - former Toledo & Ohio Central/Kanawha & Michigan engines. If you'd like, I can find the links to my locomotive diagrams (and Gary Steubbens) on George Elwood's Fallen Flags site.
Mark Plank Modeling the Toledo & Ohio Central [NYC Lines] St Marys branch in 1915 ----- Original Message ----- <snip> One of mine is NYC (it was what I was offered when I was in the market) and it close enough for most modelers, using a number for a B&A locomotive where the major differences were the bell placement and a Westinghouse cross-compound air pump instead of the twin single-phase on the B&O class (maybe also the valve gear--I don't remember from when I checked). It would require someone with considerable NYC expertise to look at the model and point out the discrepancies without researching it. Same with the MEC, Erie perhaps slightly less a match but not offensively so.
