CREATE TABLE "united_states_house_of_representatives_e" (
  "district" text,
  "incumbent" text,
  "party" text,
  "first_elected" real,
  "result" text,
  "candidates" text
);

Question:  how many party with incumbent being whitmell p. martin
SQL: SELECT COUNT("party") FROM "united_states_house_of_representatives_e" WHERE "incumbent"='Whitmell P. Martin';

Question: who is the the candidates with incumbent being james o'connor
SQL: SELECT "candidates" FROM "united_states_house_of_representatives_e" WHERE "incumbent"='James O''Connor';

Question:  how many incumbent with first elected being 1924
SQL: SELECT COUNT("incumbent") FROM "united_states_house_of_representatives_e" WHERE "first_elected"=1924;