CREATE TABLE "table1_1802522_4" (
  "district" text,
  "vacator" text,
  "reason_for_change" text,
  "successor" text,
  "date_successor_seated" text
);

Question: Name the vacator for tennessee 1st
SQL: SELECT "vacator" FROM "table1_1802522_4" WHERE "district"='Tennessee 1st';