WEBBetty Sue McMahan Golconda, IL. Betty Sue McMahan, 86, of Golconda, Illinois, passed away on Wednesday, September 25, 2024. She was born on October 12, 1937, in Bumpus Mills, Tennessee, the daughter of Joseph Earl and Lilly (Owen) McEwen. She married Howard McMahan on July 7, 1952, and he preceded her in death on November 29, 2004.