Hi, Teresa, thanks!!
Millard and Mary Virginia's daughter Anna Christine was one of my two guesses, I was just hesitant to make that identification because in the censuses she went by Christine.
Anna Christine Pettit is my 4th cousin once removed. That makes your mother and me fifth cousins. Ewell Goodpaster was also my 4th cousin 3 times removed, through our Sexton ancestry. (Ewell's mother's mother's mother was Mary Sexton who married Caleb Carey Lowry. Mary was the daughter of Benjamin Sexton Jr. & Nancy Taylor. Benjamin's brother John Sexton who married Elizabeth Ingram was my 5th great grandfather.)
If you send me your email address, I will email you a report from my database with what I have on the ancestry of your parents. Mine is firstname.lastname@example.org