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
 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

Yezhoniourien
Keltiegourien
Ganedigezhioù 1908
Marvioù 1991