K. Stringer A new Wife for Alan of Galloway Mediaeval, Genealogy, History TDGNHAS Series III, 49 (1972), 49(WARNING very large file size: 44.51 MB)
K. Stringer Galloway and the Abbeys of Rievaulx and Dundrennan Mediaeval, History TDGNHAS Series III, 55 (1980), 174(WARNING very large file size: 42.93 MB)
