CREATE TABLE "table1_224840_3" (
  "state_class" text,
  "vacator" text,
  "reason_for_change" text,
  "successor" text,
  "date_of_successors_formal_installation" text
);

Question: in which state where John Laurance (f) as a vacator?
SQL: SELECT "state_class" FROM "table1_224840_3" WHERE "vacator"='John Laurance (F)';

Question: when the vacator was Henry Latimer (f), what were the causes for modification?
SQL: SELECT "reason_for_change" FROM "table1_224840_3" WHERE "vacator"='Henry Latimer (F)';

Question: how many times has Aaron Ogden (f), been a successor and has had a formal installation? 
SQL: SELECT COUNT("date_of_successors_formal_installation") FROM "table1_224840_3" WHERE "successor"='Aaron Ogden (F)';