CREATE TABLE table_1515346_2 (player VARCHAR2, country VARCHAR2, honoree_s_ VARCHAR2)

Who won the tournament for Australia in the year when Byron Nelson was Honoree?
SELECT player FROM table_1515346_2 WHERE country = "Australia" AND honoree_s_ = "Byron Nelson"
SELECT "player" FROM "table_1515346_2" WHERE "Australia" = "country" AND "Byron Nelson" = "honoree_s_"