The third son of the author J. R. R. Tolkien is Christopher Tolkien.
From 1925 to 1945, Tolkien was the Rawlinson and Bosworth Professor of Anglo-Saxon and a Fellow of Pembroke College, both at the University of Oxford
 The story of this continuous redrafting is told in the posthumous series The History of Middle-earth, edited by Tolkien's son, Christopher Tolkien

