[S327] The Church of Jesus Christ of Latter-day Saints Ancestral File (TM).
[S1026] Royalty for Commoners:The Complete Known Lineage of John of Gaunt, Son of Edward III, King of England, and Queen Philippa, Roderick W. Stuart, (Name: Genealogical Publishing Company; Date: Jan 1, 2002;), Pages 128-130.