Joseph Patrick Riley, Jr.- Pencil sketch on 9x12 bristol paper. – Greg Joens. (born January 19, 1943) is an American politician who was the long-time Mayor of Charleston, South Carolina. He was one of the longest serving mayors in the United States that is still living, having served 10 terms starting on December 15, 1975 and ending on January 11, 2016. Source: Wikipedia