This comes from erroneous genealogies. Hannah/Johanna Anderson was married to Richard Blanton of Spotsylvania County, VA. He was the progenitor of the Cumberland County VA Blantons. See:
http://genforum.genealogy.com/blanton/messages/3221.htmlThere are no valid Blanton colonial genealogies posted on the web. You can download the research of Louise McDonald here:
http://freepages.genealogy.rootsweb.ancestry.com/~blantonroo...I have posted the corrections in the thread above.