For the October meeting of our Boston & Maine Railroad Historical Society, we will be back in friendly Plymouth, N.H.  Again, it is in the Plymouth Community Center, which was formerly the B&M train station here.  The center is conveniently located just off the Plymouth exit for Interstate 93;    Meeting's speaker is David Saums whose program will feature Snow Trains on the B&M  RR.   Railroad books, magazines, DVDs and various B&M reports and documents will be available for sale, as well as  caps, jackets, tee and sweat shirts, all marked with the B&M name or logo.  Parking is free and adjacent to the center.