What years did the Representative from Iowa with a lifespan of 1880–1942 serve?
CREATE TABLE "external_links" (
  "representative" text,
  "years" text,
  "state" text,
  "party" text,
  "lifespan" text
);
SELECT "years" FROM "external_links" WHERE "state"='iowa' AND "lifespan"='1880–1942';