CREATE TABLE table_18567 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

What year was incumbent joe b. bates first elected?
SELECT "First elected" FROM table_18567 WHERE "Incumbent" = 'Joe B. Bates'
SELECT "First elected" FROM "table_18567" WHERE "Incumbent" = 'Joe B. Bates'