Section 18: Consent to marriage of minors.

If either party to an intended marriage, not being a widower or widow, is under twenty-one years of age, the written consent of the father, or if he be dead or of unsound mind or absent from Nigeria, of the mother, or if both be dead or of unsound mind or absent from Nigeria, of the guardian of such party, must be produced annexed to such affidavit as aforesaid before a licence can be granted or a certificate issued.