When was James William Trimble first elected in the Arkansas 3 district? 
CREATE TABLE "united_states_house_of_representatives_e" (
  "district" text,
  "incumbent" text,
  "party" text,
  "first_elected" real,
  "result" text,
  "candidates" text
);
SELECT MIN("first_elected") FROM "united_states_house_of_representatives_e" WHERE "district"='Arkansas 3';