Mo. Rev. Stat. § 314.100
314.100 Denial of credit based on sex or marital status of applicant prohibited.
314.100. Denial of credit based on sex or marital status of applicant prohibited. — No person, upon proper application, shall be denied credit solely on account of sex or marital status, except as may be required to comply with section 408.200 , and except that any creditor may require the signature of both husband and wife on the credit instrument.
(L. 1974 S.B. 427 § 2)