CREATE TABLE table_73326 ("District" TEXT, "Vacator" TEXT, "Reason for change" TEXT, "Successor" TEXT, "Date successor seated" TEXT)

What is every district for reason for change is died August 9, 1964?
SELECT "District" FROM table_73326 WHERE "Reason for change" = 'Died August 9, 1964'
SELECT "District" FROM "table_73326" WHERE "Reason for change" = 'Died August 9, 1964'