I checked Barney Noble this afternoon. They are aware that it was published in September but are unable to get it. I checked Amazon the other day. The only "seller" is the publisher in NH. ($19.95 + 3.99 S&H.)
The lady at Barney Noble thinks the book is likely of local or regional interest and therefore might only be availabe "locally"....Maybe
Blacks in Wolfeboro...

NB