William Betham (1779-1853)
Activities of William Betham (1779-1853)
(3 resources in data.bnf.fr)
The Gael and Cymbri. - 
Etruria-Celtica. Etruscan literature and antiquities investigated, or the language of that ancient and illustrious people compared and identified with Iberno-Celtic and both shown to be Phoenician, by sir William Betham,...
The Gael and Cymbri, or an Inquiry into the origin and history of the Irish, Scoti, Britons and Gauls, and of the Caledonians, Picts, Welsh, Cornish and Bretons, by sir William Betham,...