CREATE TABLE table_26639 ("District" TEXT, "Vacator" TEXT, "Reason for change" TEXT, "Successor" TEXT, "Date successor seated" TEXT)

Name the vacator for kentucky 2nd
SELECT "Vacator" FROM table_26639 WHERE "District" = 'Kentucky 2nd'
SELECT "Vacator" FROM "table_26639" WHERE "District" = 'Kentucky 2nd'