What grocery store owner and politician had legendary battles with George Roby Dempster?
George Roby Dempster:  Dempster also served as a city manager and mayor of Knoxville, where he became legendary for his political battles with eccentric Knoxville businessman Cas Walker and "Knoxville Journal" editor Guy Smith, Jr. Cas Walker: Orton Caswell "Cas" Walker (March 23, 1902 – September 25, 1998), was a Tennessee businessman, politician, and personality on television and radio. Cas Walker:  Walker founded a successful chain of small grocery stores that grew to include several dozen stores scattered throughout the Knoxville, Tennessee vicinity as well as parts of Virginia and Kentucky.
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