Boone Jr., Squire b. October 5, 1744 d. August 5, 1815 Younger brother of Daniel Boone. He and his older brother, Daniel, found a cave in southern Indiana one time in 1787. One day three years later while Squire was running from Indians, he jumped for a vine and landed in the opening of the secret cave that the Indians did not know about. Since they did not find Squire, he believed the cave was holy and expressed his wish to be buried in the cave one day. Daniel and Squire were the frontiersmen who opened up what is now known as Kentucky. Of the...[Read More] Cause of death: heart failure Squire Boone Caverns, Mauckport, Harrison County, Indiana, USA Plot: He is buried inside the cave that bears his name.