Table: successorships_5
Columns: district
vacator
reason_for_change
successor
date_successor_seated

Question: What district is Samuel A. Bridges ( D ) assigned to as a successor?
SQL: SELECT "district" FROM successorships_5 WHERE "successor" = 'Samuel A. Bridges ( D )'

Question: what was the reason Richard K. Meade ( d ) became a successor?
SQL: SELECT "reason_for_change" FROM successorships_5 WHERE "successor" = 'Richard K. Meade ( D )'

Question: Who is the successor for massachusetts 8th?
SQL: SELECT "successor" FROM successorships_5 WHERE "district" = 'Massachusetts 8th'