Kenneth H. Jackson
Kenneth Hurlstone Jackson a zo ur yezhoniour saoz arbennik war ar yezhoù keltiek. Ganet eo d'ar 1añ a viz Du 1909 e Beddington e Bro-Saoz ha marvet d'an 20 a viz C'hwevrer 1991. Flour e komze ar c'hwec'h yezh keltiek a-vremañ. Ur pikol levr en deus gouestlet da istor fonologiezh ar brezhoneg: A Historical Phonology of Breton, e 1967.
Levrioù
kemmañ- 1935. Studies in Early Celtic Nature Poetry, Cambridge: University Press.
- 1935. Early Welsh Gnomic Poems, Cardiff, University of Wales Press.
- 1953. Language and history in early Britain: A chronological survey of the Brittonic languages, first to twelfth century A.D., Edinburgh: University of Edinburgh Press.
- 1955. The Pictish Language in F T Wainwright (ed) The Problem of the Picts. Edinburgh.
- 1955. Contributions to the study of Manx phonology, University of Edinburgh Linguistic Survey of Scotland Series.
- 1959. "The Arthur of History" Arthurian Literature in the Middle Ages, Oxford: Clarendon Press. ISBN 0-19-811588-1.
- 1959. "Arthur in Early Welsh Verse" Arthurian Literature in the Middle Ages, Oxford: Clarendon Press.
- 1961. "The international popular tale and early Welsh tradition" The Gregynog Lectures, 1961, Cardiff: University of Wales Press.
- 1964. The oldest Irish tradition: A window on the Iron Age, Cambridge: University Press. Advoullet 1999.
- 1967. A Historical phonology of Breton, Dublin Institute for Advanced Studies, Dublin, ISBN 978-0-901282-53-8
- 1969. The Gododdin: The Oldest Scottish poem, Edinburgh:University Press.
- 1972, etc. A Celtic Miscellany : Translations from the Celtic Literature, Penguin Paperback. ISBN 0-14-044247-2. Barzhoniezh ha komz-plaen er c'hwec'h yezh keltiek.
- 1990. Aislinge Meic Con Glinne, Dublin Institute for Advanced Studies, Dublin, ISBN 0-901282-94-4