CREATE TABLE table_72178 ("District" TEXT, "Vacator" TEXT, "Reason for change" TEXT, "Successor" TEXT, "Date successor seated" TEXT)

What was the district when the reason for change was died January 1, 1974?
SELECT "District" FROM table_72178 WHERE "Reason for change" = 'Died January 1, 1974'
SELECT "District" FROM "table_72178" WHERE "Reason for change" = 'Died January 1, 1974'