I am also a descendent of Thomas Warren of Surry County, VA. I descend thru his marriage to Elizabeth Spencer via their daughter Elizabeth Warren who married John Hunnicutt. I can take the Warren line back to the 1400's with no actual date prior to 1546. I would definitely be interested in your information and sources on the continuation of this line backwards. I would also be interested in the "quite interesting things about Thomas and Elizabeth and her father" who I have recently learned is considered an "ancient planter". Thanks in advance for this information.