- Berkshire Berries owned and operated by Mary and David Graves, is located in Becket, Massachusetts--a rural community noted for its lush wooded hillsides and cool summers. In 1978, when Mary and David produced their original three jams and jellies, they used native blueberries from their woods and raspberries and strawberries from their own backyard. Even though they have since expanded their ...www.berkshireberries.com