Question: Who were the candidates when Noah M. Mason was incumbent?
SQL: SELECT "Candidates" FROM "1-1342249-13" WHERE "Incumbent" = 'Noah M. Mason';

Question: In what year was Leo E. Allen first elected?
SQL: SELECT "First elected" FROM "1-1342249-13" WHERE "Incumbent" = 'Leo E. Allen';

Question: Who were the candidates when Sid Simpson was the incumbent?
SQL: SELECT "Candidates" FROM "1-1342249-13" WHERE "Incumbent" = 'Sid Simpson';