Farmer Giles of Ham of course...
Jest aside, it is true that Tolkien considered the Silmarillion his main work, and the Hobbit and LoTR lesser- sometimes almost a distraction from his fiddling with the details of the grand history. And in that were contained his four major stories; The Lay of Leithan (Beren and Luthien), the Narn i Hin Hurin (Chrisopher Lee reads it excellently BTW- it is on youtube), Tuor and The Fall of Gondolin and the Story of Eärendil. So Gallus was very close. He can ask the next question while Ngugi goes to Spritbolaget to spend SKr 1500 on a crate of beer ;-)