Elwin Ransom
Elwin Ransom may be based on C. S. Lewis' friend J. R. R. Tolkien ("Elwin" means "Elf friend" in Anglo-Saxon), though he seems to have autobiographical elements. In "That Hideous Strength" Ransom, with his royal charisma and matter-of-fact breezy acceptance of the supernatural, appears less like Tolkien than like Charles Williams (or some of the heroes in Williams' books).
Tolkien family
The Tolkien family is an English family of German origin whose best-known member is J. R. R. Tolkien, Oxford academic and author of the fantasy books "The Hobbit", "The Lord of the Rings" and "The Silmarillion".