When William M Costner was born on 6 June 1849, in Cassville, Cass, Georgia, United States, his father, Eli Costner, was 22 and his mother, Ann Forester, was 21. He married Amanda Pinion on 25 October 1874, in Bartow, Georgia, United States. They were the parents of at least 6 sons and 2 daughters. He died on 20 May 1915, in Talladega, Alabama, United States, at the age of 65.
Altered form of German Kostner or Kastner .