Dan Gasby of Sag Harbor is best known for his partnership with model and lifestyle figure B Smith, who was his wife.  B Smith restaurant was on Long Wharf for decades, and other locations were in New York City and Washington.    The courageous and dedicated way he helped her through the long decline through Alzenheimers for years and years until she died last year was a tribute to him.  He talks about how following such a path brought new meaning to his life.