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^ "Biographical Sketch, L. Curtis Tiernan".

^ "FAQ: Was President Truman the first Baptist president?". Harry S. Truman Library & Museum. Retrieved March 5, 2016..

^ Spalding, Elizabeth Edwards (2009), "Religion and the presidency of Harry S. Truman",  in Espinosa, Gastón (ed.), Religion and the American Presidency: George Washington to George W. Bush, pp. 219–249.

^ Sobel, Robert (1990). Biographical Directory of the United States Executive Branch, 1774–1989. Westport, CT: Greenwood Press. p. 358. ISBN 978-0-313-26593-8. harry s truman discharged major 1919.

^ "United States Army Officers' Reserve Corps Commission for Harry S. Truman, March 20, 1920". From Soldier to Senator: Harry S. Truman, 1918–1941. Independence, MO: Harry S. Truman Library and Museum. Retrieved April 23, 2022.

^ Pullen, Randy (1999). "Twice the Citizen—And Then Some". Army Reserve Magazine. Washington DC: U.S. Army Reserve: 12.

^ Clay, Steven E. (2010). US Army Order of Battle, 1919–1941. Ft. Leavenworth, KS: Combat Studies Institute Press. p. 878. ISBN 9780984190140.

^ Tucker, Frank (December 1, 2010). "Army History: Truman, you're too old ...". Gateway Today. 