Also: The 80s make an amazing comeback at The Keswick By Denny Dyroff, Staff Writer, The Times By far, one of the most interesting musical events to hit the area this summer will take place on August 21 at Longwood Gardens (Route 1, Kennett Square, 610-388-1000, www.longwoodgardens.org). Jackie Evancho, who has starred in two PBS specials for the television series … Continue reading On Stage: Free member show at Longwood