Mo. Rev. Stat. § 451.110

Every person solemnizing marriages under this chapter shall issue and deliver to the parties to such marriage a certificate thereof, which shall be furnished in blank by the officer who issues such license, setting forth the names and residence of the parties and the date of such marriage, and the county from which the license was issued and the date of same; and such certificates shall be prima facie evidence of the facts therein stated in all courts of this state.