In district New York 10th, what was the reason for change?
CREATE TABLE "table1_1694492_2" (
  "district" text,
  "vacator" text,
  "reason_for_change" text,
  "successor" text,
  "date_successor_seated" text
);
SELECT "reason_for_change" FROM "table1_1694492_2" WHERE "district"='New York 10th';