. . "In such declaration, the person above mentioned shall certify to the following facts: (a) date and hour of birth; (b) sex and nationality of infant; (c) names, citizenship and religion of parents or, in case the father is not known, of the mother alone; (d) civil status of parents; (e) place where the infant was born; and (f) such other data as may be required in the regulations to be issued." . .