People sometimes wonder, “Who’s the oldest sailor?” Here he is. A Maryland family rescheduled a rain date and wound up sailing the York in a rising afternoon breeze that they found a magnificent adventure. Weeks earlier, Kathy Self had hoped to bring her uncle along with her father Jack Green as a birthday surprise so he could go sailing at 85. “In retrospect this worked out better,” she said, “as he’s cranky and would have resisted the sailing. Dad loves this.” Jack is retired…