"Navigation Bulletin No. 2 of 2006"(PDF). United States Army Corps of Engineers, Memphis District. November 13, 2006. Archived from the original(PDF) on January 11, 2009. Retrieved March 25, 2009.
"Jackson Purchase". excerpt from The Kentucky Encyclopedia edited by John E. Kleber. 1992. Archived from the original on October 6, 2008. Retrieved October 24, 2008.
"Jackson Purchase". excerpt from The Kentucky Encyclopedia edited by John E. Kleber. 1992. Archived from the original on October 6, 2008. Retrieved October 24, 2008.
"Treaties". Tennessee Encyclopedia of History and Culture. Archived from the original on May 12, 2009. Retrieved October 24, 2008.
"Navigation Bulletin No. 2 of 2006"(PDF). United States Army Corps of Engineers, Memphis District. November 13, 2006. Archived from the original(PDF) on January 11, 2009. Retrieved March 25, 2009.