Ran across these comments from a Library of Congress member:
&In my experience, *Magna Charta* by John S. Wurts, which appeared in at least five volumes, is a fairly worthless work. I haven't paid close
attention to the pedigrees he gave for the original barons, but the number of false lines down to the present that he gave (Wurts was especially poor in dealing with immigrant origins) provides me with no good feelings about the other things he says."
http://archiver.rootsweb.ancestry.com/th/read/GEN-MEDIEVAL/1996-04/...
It's truly awful. I have (or maybe had) a copy. My experience was that he is reasonably reliable when dealing with the families of the Magna Carta barons, but he accepted uncritically just about every possible claim to descend from them.
Eminent genealogist Gary Boyd Roberts had this to say about Wurts (and others of his ilk):
http://www.americanancestors.org/internet-data-ancestral/
Great article, with a good explanation of the Ancestral file (not so good) versus the IGI in https://www.familysearch.org/
He is saying "ignore American records about English origins unless ..." ?