In the same neck of the woods you also had the Williamsport and Northern which met both the RDG and Pennsy on the south end and the LV on the north at or near Dushore-Mildred-Lopez (in fact perhaps all three via wyes and branches) and even had a passenger train all the way up to Monroeton! Ill fated were the likes of the Pittsburgh, Binghamton and Eastern, and one of the incarnations of the Barclay Railroad. THere were many surveys done, some grading done, even engines delivered, but all dreams that went bust in the Endless Mountains and tall trees!
I read a book this winter called "Set Up Running" about the life of a PRR railroader who worked out of Ralston. The book was written by the man's son, so there are many references to the S&NY. I borrowed the book from the university library, so I don't remember the author's name, and don't have it on me for specifics. I will see what I can remember.
-Nick