CREATE TABLE table_26648 ("State  ( class ) " CLOB, "Vacator" CLOB, "Reason for change" CLOB, "Successor" CLOB, "Date of successors formal installation" CLOB)

When did Orville H. Browning (r) succeed?
SELECT "Date of successors formal installation" FROM table_26648 WHERE "Successor" = 'Orville H. Browning (R)'
SELECT "Date of successors formal installation" FROM "table_26648" WHERE "Successor" = 'Orville H. Browning (R)'