Holly Hat Racking Demo, 10 a.m. to noon, Polly Hill Arboretum, State Road, West Tisbury. Learn how to tame overgrown hollies by using radical pruning method. Call 508-693-9426 or visit pollyhillarboretum.org.
The Union Chapel in Oak Bluffs will host Dr. John Silvanus Wilson Jr., president of Morehouse College in Atlanta, Ga., as its visiting speaker this Sunday, August 3.
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