CREATE TABLE "table1_225102_4" (
  "district" text,
  "vacator" text,
  "reason_for_change" text,
  "successor" text,
  "date_successor_seated" text
);

Question: Name the vacator for reason for change died january 12, 1826
SQL: SELECT "vacator" FROM "table1_225102_4" WHERE "reason_for_change"='Died January 12, 1826';

Question: Name the reason for change pennsylvania 13th
SQL: SELECT "reason_for_change" FROM "table1_225102_4" WHERE "district"='Pennsylvania 13th';

Question: Name the vacator for died august 13, 1826
SQL: SELECT "vacator" FROM "table1_225102_4" WHERE "reason_for_change"='Died August 13, 1826';