The song "Missouri Waltz", arranged by Frederick Knight Logan from a melody by John Valentine Eppel, with lyrics by J. R. Shannon, is the official state song of Missouri.
Mo. Rev. Stat. § 10.050
State song
Effective: 28 Aug 1957; (L. 1949 p. 275 § 1, RSMo 1949 § 10.100, A.L. 1957 p. 726)
Official source: Missouri Revisor of Statutes. Reproduced from public-domain Missouri statutes; confirm against the official source for the current text. Not legal advice.