LT. THORBURN BATTLER FOURJAP FIGHTERSLieut. Donald G. Thorburn, 920 Oak Grove avenue, Burlingame, pilot of the B-29 Superfortress first over Tokyo in the moonlit night raid' vas back at Saipan today with evidence to show that the raid was not « joyride inr cloudland. 'Mrs. Thorburn, the former Camille Haller,22 1 *v*n^ v. ith ho? parents at the Oak Grove avenue home.Fought Off JapsThe evidence was two bullet holes in the cowling of one of his plane’s engines.Three or four Japanese night fighters attacked his bomber over Tokyo, he told United Press correspondents at Saipan. Thorburn fought them off, finished Ms mission,'and returned to Saipan.Other members of the bombing crew also had their troubles, according to the stories related today at Saipan.One Superfortress returned on “two and a half engines” after a 1500-mile night flight that threatened to end at any moment with a crash landing at sea.Started Over TokyoRed-haired co-pilot, Lieut. William H. Criswell of Seattle, Wash., told about this nerve wracking run home after bombing Tokyo.“Our troubles started over Tokyo itself,” Criswell said. “The pilot took the ship down to 8,000 feet to(Turn to Page 2, Column 4)-o--