Not a full list by any means list.
Taken from notes made over many years of research in the writing of "This Mighty Isle".
These listed, are the ones that raised my imagination.
Proper recognition to authors and book titles given at end,but Not in any order or detail.
My thanks to all these Authors.

"Rhongomyniad" Spear of Arthur.

"Rhiannon" Virgin.

"Rigonemetis" Green Man,Lord of the Wildwood.

Book of Druidry(Ross Nichols)Mythology of the British Isles(Geoffrey Ashe)Ancient Faith of Britain(Dudley Wright)Druid Way(P Carr-Gom)Druid Renaissance(P Carr-Gom)The Encyclopedia of Celtic Wisdom(Caitlin and John Matthews)Glastonbury,Avalon off the heart(Dion Fortune)The White Goddess(Robert Graves)Druidry(Philip Shallcrass)Avalonian Quest(Geoffrey Ashe)Druid Animal Oracle(Philip and Stephanie Carr-Gom)Arthurian Myth and Legend(Mike Dixon-Kennedy)The Voice Within the Wind(Greywind) The Druid Sourse Book(John Matthews)Gods of the Celts(Miranda Green)The Lore of the Bard(Arthur Rowen)The Celtic Year Book(John King)Pagan Pathways(Emma Restall-Orr)Act of God(Philips)Bloodline of the Holy Grail(Laurence Gardner)Dead Sea Scrolls Deception(Richard Leighand Michael Baigent)Magi(G Ash)Witches,Druids and King Arthur(Ronald Hutton)Living Druidry(Emma Restall-Orr)The mystical Qabalah(Dion Fortune)Secrets of the Druids(John Matthews)The Bible.