I am also William Neal Allen and Hester Ann Marker's great-great grandson. I am looking into the information on the Allen family.(What that can be found!) My great-grandparents are Myrtle Allen and Bert White. All I know is that William and Hester had at least two children Zachariah and Myrtle. I have heard many stories on the issue of a Native American background through my Allen line. I have no clue. Maybe we can find something. Nice too meet you.