William Henry Perrin, J. H. Battle, G. C. Kniffin, Kentucky: A History of the State, "Embracing a Concise Account of the Origin and Development of the Virginia Colony, Its Expansion Westward, and the Settlement of the Frontier Beyond the Alleghanies : the Erection of Kentucky as an Independent State, and Its Subsequent Development", Adair County (Ky.): F. A. Battey, 1887, p. 294
Rennick, Robert. Kentucky Place Names, p. 226. University Press of Kentucky (Lexington), 1987. Accessed 1 August 2013.
"An American Inventor". Garrett A. Morgan Technology and Transportation Futures Program. Federal Highway Administration. Archived from the original on January 15, 2012. Retrieved December 6, 2011.
"An American Inventor". Garrett A. Morgan Technology and Transportation Futures Program. Federal Highway Administration. Archived from the original on January 15, 2012. Retrieved December 6, 2011.