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).
Christopher Tolkien
Christopher Tolkien currently lives a reclusive life far from media intrusion in the French countryside with his second wife, Baillie Tolkien (née Klass), who edited J. R. R. Tolkien's "The Father Christmas Letters" for posthumous publication. They have two children, Adam Reuel Tolkien and Rachel Clare Reuel Tolkien. In the wake of a dispute surrounding the making of "The Lord of the Rings" film trilogy he reportedly disowned his son by his first marriage, barrister and novelist Simon Mario Reuel Tolkien, though they have since reconciled.