Wayne A. Gnatuk is both a third-generation Chautauquan and a third-generation philatelist. He first came to Chautauqua Institution from Pittsburgh

Sheryl Crow’s Grammy Award-winning voice will fill the Amphitheater at 8:15 p.m. Friday thanks to Wegmans Food Markets, which is underwriting the concert. “We really believe that the arts play a very important role in