Information sur la source

Ancestry.com. The book of Carlaverock : memoirs of the Maxwells, Earls of Nithsdale, Lords Maxwell & Herries [base de données en ligne]. Provo, UT: Ancestry.com Operations Inc, 2005.
Données originales : Fraser, William,. The book of Carlaverock : memoirs of the Maxwells, Earls of Nithsdale, Lords Maxwell & Herries. Edinburgh Scotland: unknown, 1873.