CREATE TABLE table_1506619_1 (headquarters VARCHAR, school_board VARCHAR)

Which headquarters are associated with the school board Renfrew County Catholic District School Board?
SELECT headquarters FROM table_1506619_1 WHERE school_board = "Renfrew County Catholic District school_board"
SELECT "headquarters" FROM "table_1506619_1" WHERE "Renfrew County Catholic District school_board" = "school_board"