Lewis, Marlyn, Recipient: J.H. Garner, soc.genealogy.medieval, @ no parents, no title
The cited information was published by usenet newsgroup soc.genealogy.medieval (Ref: no parents, no title) The author/originator was Marlyn Lewis.
Source Notes
He also compiled "Ahnentafel for Elizabeth Plantagenet (Wife of
Henry Tudor): Generations 1-15". Arvada, CO: Heliotrope
Communications, 1996.