CREATE TABLE table_28912 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" CLOB, "Result" CLOB, "Candidates" CLOB)

Who is first elected when Kentucky 6 is the district?
SELECT "First elected" FROM table_28912 WHERE "District" = 'Kentucky 6'
SELECT "First elected" FROM "table_28912" WHERE "District" = 'Kentucky 6'