An illegitimate child; a child born of an unlawful intercourse, and while its parents are not united in marriage. Tlm-mlns v. Lacy, 30 Tex. 135; Miller v. Anderson, 43 ohio St. 473, 3 N. E. 605, 54 Am. Rep. 823; Pettus v. Dawson, 82 Tex. 18, 17 S. W. 714; Smith v. Perry, 80 Va. 570