The third baptism is that of Placido. The document says that his parents were "no
conocidos," or "not recognized," which was the church's way of saying  that the parents
weren't married by the laws of the church. But the mother was named, being Dolores
Gonzales, which normally wasn't done, and makes the connection more certain. The
father would never be named, yet the child would normally take the father's surname.