Some books to start with:
http://www.historicrail.com/historicrail/product_info.po?ID=3549&product=Books&category=railroads&subcategory=North%20American
If you can find volume 1 you've got a good place to start. I model B&A. It's tough to find information!
Can anyone possibly help me, i'm looking for photos or records on Trains that ran up the Ware river line on the Boston & Albany. I currently live just a block away from the Ware yard and for some time know i have been looking for some to model after but have found nothing.