Question:  how many party with incumbent being Whitmell P. Martin
SQL: SELECT COUNT("Party") FROM "1-1342393-17" WHERE "Incumbent" = 'Whitmell P. Martin';

Question: who is the the candidates with incumbent being James O'Connor
SQL: SELECT "Candidates" FROM "1-1342393-17" WHERE "Incumbent" = 'James O''Connor';

Question:  how many incumbent with first elected being 1924
SQL: SELECT COUNT("Incumbent") FROM "1-1342393-17" WHERE "First elected" = 1924.0;