29 Myths, Folklore, and Legends (Illustrated by artists from The Golden Age of Illustration)
Arthur Rackham Illustrated Books (Myths, Legends, and Folktales)
https://commons.wikimedia.org/wiki/Category:Illustrations_by_Arthur_Rackham
Arthur Rackham Illustrations (R.Wagner, The Valkyrie and the Rheingold, translated by Margaret Armour, Heinemann/Doubleday, 1910).
https://www.gutenberg.org/files/58830/58830-h/58830-h.htm
A list of books illustrated by Arthur Rackham and available through Project Gutenberg
https://www.gutenberg.org/ebooks/author/6335
Stories from the Arabian Nights (Internet Archive)
Bengal Tales ( Bahari Day & Goble, 1912) illustrated) (Internet Archive
https://ia902605.us.archive.org/34/items/folktalesofbenga00dayluoft/folktalesofbenga00dayluoft.pdf
Lansing, M.F. Fairytales (Illustrated by Charles Copeland). Retrieved https://www.gutenberg.org/files/67776/67776-h/67776-h.htm. Ginn and Co. 1907.
Edmund Dulac’s Illustrations for The Arabian Nights
https://commons.wikimedia.org/wiki/Category:Illustrations_to_the_Arabian_Nights_by_Edmund_Dulac
Books illustrated by Henry Justice Ford
https://commons.wikimedia.org/wiki/Category:Henry_Justice_Ford
Russian Myths and Legends (illustrated)
https://www.gutenberg.org/files/12851/12851-h/12851-h.htm
Book Illustrations by Ivan Biliban
https://commons.wikimedia.org/wiki/Category:Russian_tales_illustrated_by_Ivan_Bilibin
Virginia Frances Sterrett Illustrations
https://commons.wikimedia.org/wiki/Category:Evelyn_Paul
Myths of Assyria and Babylon (Paul illustrations)
Illustrations by Virginia Frances Sterrett
https://commons.wikimedia.org/wiki/Category:Virginia_Frances_Sterrett
Chinese Myths and Legends
Japanese Myths and Legends (Mary F. Nixon-Roulet, 1908, Illustrated).
https://ia902605.us.archive.org/34/items/folktalesofbenga00dayluoft/folktalesofbenga00dayluoft.pdf
Evelyne Paul Illustrations of Japanese Folk and Fairytales (Internet Archive)
John Bauer Art (Scandinavian Folk and Fairy Tales)
https://www.artpassions.net/bauer/bauer.html
Viktor Rydberg, Ph.D. Teutonic Mythology: Gods and Goddesses of the Northland (Translated by Rasmus B. Anderson). Norroena. 1910. (Illustrations by Lorenz Frölich).
https://www.gutenberg.org/files/58830/58830-h/58830-h.htm
https://archive.org/details/mythslegendsofja45723gut/45723-h/images/japan008b_ia02.jpg
Walter Crane Illustrations
King Arthur’s Tales
https://www.gutenberg.org/files/22396/22396-h/22396-h.htm
Flowers from Shakespeare’s Gardens (illustrated by Walter Crane)
https://www.gutenberg.org/files/64102/64102-h/64102-h.htm
The Story of Greece (retold by Mary MacGregor)
https://www.gutenberg.org/files/66070/66070-h/66070-h.htm
A Wonder Book for Girls and Boys (Crane illustrations)
https://www.gutenberg.org/files/32242/32242-h/32242-h.htm
List of Books Illustrated by Arthur Rackham
Warwick Goble Illustrations for Green Willow and other Japanese Tales (Grace James and Warwick Goble, 1910)
https://ia800208.us.archive.org/15/items/greenwillowother00jame/greenwillowother00jame.pdf
African Folktales
https://www.theafricanheritageinc.org/exploring-african-cultures-through-folktales/#
Courtesy: Internet Archive
The Brown Fairy Book (Lang)
https://archive.org/details/brown_fairy_book_1207_librivox
Internet Archives
Edmund Dulac: Fairy Book from the Allied Nations.
https://ia800208.us.archive.org/11/items/edmunddulacsfair00dularich/edmunddulacsfair00dularich.pdf
https://archive.org/details/06PirouezeTheFairestAndMostHonourablyBorn001/00%20Cover-001.jpg
Books-Illustrated by Edmund Dulac
https://www.gutenberg.org/ebooks/author/7657
Andrew Lang (All 12 Fairy Books-Blue, Red, Green, Yellow, Pink, Grey, Violet, Crimson, Brown, Orange, & Lilac).
https://archive.org/details/FairyBooksOfAndrewLangAndrewLang
African Tales (sorted)-Andrew Lang
https://ia804602.us.archive.org/6/items/lang-fairy-books-africa/lang%20fairy%20books%20africa.pdfE
The De Morgan Centre-Pre Raphaelite Guide.