Question: How many people were first elected when John Roane was the incumbent?
SQL: SELECT COUNT("First elected") FROM "1-2668243-25" WHERE "Incumbent" = 'John Roane';

Question: What party did John S. Barbour represent?
SQL: SELECT "Party" FROM "1-2668243-25" WHERE "Incumbent" = 'John S. Barbour';

Question: What was the result of the election featuring Andrew Stevenson (J) 100%?
SQL: SELECT "Result" FROM "1-2668243-25" WHERE "Candidates" = 'Andrew Stevenson (J) 100%';

Question: What candidate(s) ran for election when Nathaniel H. Claiborne was the incumbent?
SQL: SELECT "Candidates" FROM "1-2668243-25" WHERE "Incumbent" = 'Nathaniel H. Claiborne';