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^ Jump up to: a b "County Judges 1923–1972".

^ Jump up to: a b Ferrell 1994, p. 99.

^ "County Judges 1826–1922". County History: County Judges. Kansas City, Missouri: Jackson County, Missouri. 2018. Archived from the original on September 30, 2020. Retrieved April 20, 2018.

^ "Use of the Period After the "S" in Harry S. Truman's Name". Harry S. Truman Library & Museum. Retrieved April 13, 2021.

^ Hamby, Alonzo L. (October 4, 2016). "Harry S. Truman: Life in Brief". Miller Center of Public Affairs. Retrieved February 2, 2022.

^ McCullough 1992, p. 37.

^ McCullough 1992, pp. 27, 37.

^ Niel Johnson; Verna Gail Johnson (1999). "Rooted in History: The Genealogy of Harry S. Truman". Harry S. Truman Library – Genealogy. Retrieved May 6, 2018..

^ "Ulster-Scots and the United States Presidents" (PDF). Ulster Scots Agency. Retrieved July 12, 2010.

^ Truman Library, Birth 2012.

^ McCullough 1992, pp. 37, 77, 1112.

^ Devine, Michael J. (2009). Harry S. Truman, the State of Israel, and the Quest for Peace in the Middle East. Truman State Univ Press. 