^ "Family relationship of General Robert E. Lee and Zachary Taylor via Richard Lee". famouskin.com.

^ Jump up to: a b Cohen, Jared (2019). Accidental Presidents: Eight Men Who Changed America (1 ed.). New York: Simon & Schuster. p. 51. ISBN 978-1-5011-0982-9. OCLC 1039375326.

^ Jump up to: a b Bauer 1985, p. 4.

^ Nowlan, Robert A. (2016). The American Presidents From Polk to Hayes. Denver, Colorado: Outskirts Press. p. 79. ISBN 978-1-4787-6572-1.

^ Johnston, J. Stoddard (1913). "Sketch of Theodore O'Hara". The Register of the Kentucky Historical Society. Frankfort, Kentucky: State Journal Company. p. 67.

^ Jump up to: a b Bauer 1985, pp. 2–4.

^ Jump up to: a b Hamilton 1941, pp. 25–29.

^ Bauer 1985, pp. 8–9.

^ Hamilton 1941, p. 37.

^ Jump up to: a b c d e f "Zachary Taylor: Facts at a Glance". American President: A Reference Resource. Miller Center (University of Virginia). September 26, 2016.

^ Bauer 1985, pp. 48–49.

^ Bauer 1985, pp. 69–70.

^ Jump up to: a b Bauer 1985, p. 38.

^ Bauer 1985, p. 243.

^ Underwood, Larry (2002). All the Presidents' Children. Crete, Neb: Dageford Publishing Inc. p. 47. ISBN 9781886225855.

