 Davidson's unit served with Johnson at the Battle of the Thames, and after the battle, Davidson claimed it was a soldier in his company – a man named John King – and not Johnson, who killed the Shawnee chief Tecumseh during the battle.Historian William B. Allen later opined, based upon interviews with both American and Shawnee soldiers who participated in the battle, that neither Johnson nor King killed Tecumseh, but another Shawnee who bore a striking resemblance to him, and that Tecumseh was killed by a random bullet.Following his service in the war, Davidson was elected to represent Lincoln County in the Kentucky Senate.