Question: When did Orville H. Browning (R) succeed?
SQL: SELECT "Date of successors formal installation" FROM "1-2417330-3" WHERE "Successor" = 'Orville H. Browning (R)';

Question: List all dates of succession in the state class Missouri (3).
SQL: SELECT "Date of successors formal installation" FROM "1-2417330-3" WHERE "State (class)" = 'Missouri (3)';