(Research) KINSHIP: Investigate> Bartrum's 'Welsh Genealogies 300-1400' volume 4 page 206 questions whether he belongs in this family.
(Research) IDENTITY: Investigate> Thomas' 'Golden Grove MS' book 7 page D849 and page D861 make him the son of Sir Aron ap Rhys, Knight. Page D861 also incorrectly gives him a son named Madog.