Making America: A History of the United States. Cengage Learning. ISBN 978-0-495-90979-8.

^ Crapol, pp. 41–43.

^ Chitwood, pp. 330–32; Seager, pp. 210–11.

^ Jump up to: a b "John Tyler: Foreign Affairs Archived December 7, 2008, at the Wayback Machine in Freehling, American President. Retrieved June 1, 2014.

^ Sexton, Jay (March 15, 2011). The Monroe Doctrine. ISBN 978-1-4299-2928-8.

^ Chitwood, pp. 332–34; Seager, p. 211.

^ Jump up to: a b McCormick 2002, p. 145.

^ Chitwood, pp. 305–16; Seager, p. 212.

^ McCormick 2002, pp. 145–146.

^ Jump up to: a b c d e f McCormick 2002, p. 146.

^ Chitwood, pp. 335–36; Seager, p. 213.

^ Nevins 1931, pp. 20–21.

^ Richards 2007, pp. 46–47.

^ Chaffin 2014, pp. 95–97.

^ Nevins 1931, p. 20.

^ Jump up to: a b c Nevins 1931, p. 21.

^ Chaffin 2014, p. 249.

^ Report of the Exploring Expedition to the Rocky Mountains (1845)

^ "Key Events in the Presidency of John Tyler Archived August 11, 2011, at the Wayback Machine" in Miller Center, American President. Retrieved June 1, 2014.

^ Chitwood, pp. 326–30.

^ Chitwood, p. 330.

^ Holt 1974, pp. 63–64.

^ Miller Center.

