What was the lifespan of the Representative from the Republican Party during the years of 1953–1970?
CREATE TABLE "external_links" (
  "representative" text,
  "years" text,
  "state" text,
  "party" text,
  "lifespan" text
);
SELECT "lifespan" FROM "external_links" WHERE "party"='republican' AND "years"='1953–1970';