Children born outside of a marriage become legitimate by the subsequent marriage of their parents. Children born of a marriage contracted in violation of section 595.3 or 595.19 are legitimate. [C51, §1479; R60, §2531; C73, §2200; C97, §3150; C24, 27, 31, 35, 39, § 10444; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §595.18 ] 94 Acts, ch 1046, §30