Bill Gardei did a very nice job of documenting this section of the line. I recommend checking out his page. Follow the link below. The station has come a long way. Rochester N.H. is a very interesting town to study, it once had railroads coming in from six different directions.
Today there is still stuff left to see.
The New Hampshire Northcoast RR has it's mainline going through town. There are traces of the railroads of the past. This Rochester page has pictures and maps of the town. It's a large file but worth taking a look at.