CREATE TABLE table_18689 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

In which district is James O'Connor the incumbent?
SELECT "District" FROM table_18689 WHERE "Incumbent" = 'James O''Connor'
SELECT "District" FROM "table_18689" WHERE "Incumbent" = 'James O''Connor'