CREATE TABLE table_203_549 (id DECIMAL, "player" TEXT, "team" TEXT, "date" TEXT, "opponent" TEXT, "venue" TEXT)

who is the first major league hitter to hit two grand slams in one game ?
SELECT "player" FROM table_203_549 ORDER BY "date" LIMIT 1
SELECT "player" FROM "table_203_549" ORDER BY "date" NULLS FIRST LIMIT 1