US retailer Winn-Dixie Stores has announced the election of Charlotte division manager Joel B. Barton as a vice-president and Stephen T. deRiesthal as vice-president, real estate. President and CEO Al Rowland made the announcement.   Barton was announced as the Charlotte Division Manager on 27 September 2002. He came to Winn-Dixie from Spartan Stores, Grand Rapids, Michigan where he was executive vice-president of merchandising and marketing, and president of retail stores.