CREATE TABLE table_26641 ("District" CLOB, "Vacator" CLOB, "Reason for change" CLOB, "Successor" CLOB, "Date successor seated" CLOB)

Name the successor for vacant and december 3, 1862
SELECT "Successor" FROM table_26641 WHERE "Reason for change" = 'Vacant' AND "Date successor seated" = 'December 3, 1862'
SELECT "Successor" FROM "table_26641" WHERE "Date successor seated" = 'December 3, 1862' AND "Reason for change" = 'Vacant'