Meriwether Lewis (2012). “History of the Expedition under the Command of Captains Lewis and Clark, Vol. I. To the Sources of the Missouri, Thence Across the Rocky Mountains and Down the River Columbia to the Pacific Ocean. Performed During the Years 1804-5-6.”, p.229, tredition
John Filson, Daniel Boone (1793). “The discovery, settlement and present state of Kentucky, and an introduction to the topography and natural history of that ... country. Also colonel Daniel Boon's narrative of the wars of Kentucky”, p.43