[S2987] Ashley, Mike, Ashley-1999, (Carroll & Graf Publishers, Inc. New York: 1999), p 468 (Troverdighet: 3).
[S2989] Hidle, Johannes & Løland, Jacob Sverre, Hidle-1972, (1972: Dreyer Aksjeselskap, Stavanger).
[S2983] Ferguson, June, Ferguson-1998, (14 Jun 1998).
[S2984] Fettes, Ian, Fettes-2001, (Feb 2001: Australia) (Troverdighet: 3).
Tompsett, Brian. Royal and Noble Genealogy. (http://www.dcs.hull.ac.uk). Oct 1996 and later.
[S2989] Hidle, Johannes & Løland, Jacob Sverre, Hidle-1972, (1972: Dreyer Aksjeselskap, Stavanger) (Troverdighet: 3).
Shows 888.