Question: which Vacator has a Reason for change of Resigned November 10, 1965?
SQL: SELECT "Vacator" FROM "2-1847180-3" WHERE "Reason for change" = 'Resigned November 10, 1965';

Question: Which Reason has a State (class) of Tennessee (2)?
SQL: SELECT "Reason for change" FROM "2-1847180-3" WHERE "State (class)" = 'Tennessee (2)';

Question: When is it that successor's formal installation has a Vacator of Ross Bass (D)?
SQL: SELECT "Date of successor's formal installation" FROM "2-1847180-3" WHERE "Vacator" = 'Ross Bass (D)';

Question: Which State (class) has a Successor of Harry F. Byrd, Jr. (D)? Question
SQL: SELECT "State (class)" FROM "2-1847180-3" WHERE "Successor" = 'Harry F. Byrd, Jr. (D)';

Question: Which date of Date of successor's formal installation has a State (class) of Michigan (2)?
SQL: SELECT "Date of successor's formal installation" FROM "2-1847180-3" WHERE "State (class)" = 'Michigan (2)';