Question: Who is the incumbent that is a Republican and first elected before 1864?
SQL: SELECT "Incumbent" FROM "2-1434810-3" WHERE "Party" = 'Republican' AND "First elected" < 1864.0;

Question: What district is the Democratic Francis C. Le Blond from?
SQL: SELECT "District" FROM "2-1434810-3" WHERE "Party" = 'Democratic' AND "Incumbent" = 'Francis C. Le Blond';

Question: In the Ohio 4 district, that is the first elected date that has a result of Re-elected?
SQL: SELECT SUM("First elected") FROM "2-1434810-3" WHERE "Result" = 'Re-elected' AND "District" = 'Ohio 4';

Question: What is the party in Ohio 6 District?
SQL: SELECT "Party" FROM "2-1434810-3" WHERE "District" = 'Ohio 6';