CREATE TABLE table_name_67 (district VARCHAR2, result VARCHAR2, incumbent VARCHAR2)

Which district has a retired republican hold and an incumbent of rufus p. spalding?
SELECT district FROM table_name_67 WHERE result = "retired republican hold" AND incumbent = "rufus p. spalding"
SELECT "district" FROM "table_name_67" WHERE "incumbent" = "rufus p. spalding" AND "result" = "retired republican hold"