CREATE TABLE table_204_145 (id DECIMAL, "representative" TEXT, "state" TEXT, "district ( s ) " TEXT, "served" TEXT, "party" TEXT, "date of birth" TEXT, "date of death" TEXT, "age" TEXT)

who died first : sala burton or harold earthman ?
SELECT "representative" FROM table_204_145 WHERE "representative" IN ('sala burton', 'harold earthman') ORDER BY "date of death" LIMIT 1
SELECT "representative" FROM "table_204_145" WHERE "representative" IN ('sala burton', 'harold earthman') ORDER BY "date of death" NULLS FIRST LIMIT 1