Matter of Hines, 24 I. & N. Dec. 554 (BIA 2008) (under Jamaican law, the sole means of "legitimation" of a child born out of wedlock is the marriage of the childs natural parents; respondent was born in Jamaica of natural parents who never married, and therefore his paternity was not established "by legitimation" so as to disqualify him from deriving United States citizenship pursuant to former INA 321(a)(3), 8 U.S.C. 1432(a)(3) (1988), through his mothers naturalization in 1991), overruling Matter of Clahar, 18 I. & N. Dec. 1 (BIA 1981).
http://eoirweb/library/intdec/vol24/3612.pdf