You can read the book White Women, Black Men by Martha Hodes, who gives a detailed history on this subject, even prior to Bacon's Rebellion. According to her, and with actual historical records to back it up, those children born of a white mom who was a free woman would be free born. Of course, equal and fair treatment were most definitely not the case for these children in many places. If the mom were free born, regardless of race, her children were, also. If the mom were a slave, then so were her children, regardless the race of the *******.
A very disgusting part of our nation's (and many others) history. But it should be taught so that people can, hopefully, understand the gravity of the situation in which folks were ****** to exist in those times. And for those existing in terrible situations even in our own time.
Many of the folks who moved from the east and settled in the less desirable (at that time) mountainous regions colonies were actually these very folks, often mixed European, African and Native American descent. Some DNA testing has been done on the Chestnut Ridge people common around Philippi, West Virginia, as well as other, so-called Melungeon people, and it was found that the predominant paternal, or Y-chromosome ancestry, is African American, while the predominant maternal, or mitochondrial X, is European. Like many other people in the Appalachian area at the time, mixed ancestry seemed to be not as uncommon as some would think.
It's a good read if this is a topic you have a lot of interest in. Much of her sources are from testimonials of people at the time in the south, both courthouse documents and periodicals. She seems to have put a great amount of effort into her research when putting her book together. I hope that you and others check it out, Driller.
AND, i hope that i'm not in violation of any rules for promoting someone's book on the subject. If i am, i most certainly apologize for my offence...and HOPE that it's not a ban-worthy one.