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.36
"The History of Indiana, from Its Earliest Exploration by Europeans, to the Close of the Territorial Government, in 1816". Book by John Brown Dillon, www.esquire.com. 1859.