CREATE TABLE "table1_1013168_3" (
  "district" text,
  "vacator" text,
  "reason_for_change" text,
  "successor" text,
  "date_successor_seated" text
);

Question: What is the name of the vacator for district Louisiana 1st?
SQL: SELECT "vacator" FROM "table1_1013168_3" WHERE "district"='Louisiana 1st';