CREATE TABLE table_202_202 (id DECIMAL, "name" TEXT, "assumed office" TEXT, "left office" TEXT, "president appointed by" TEXT, "secretary served under" TEXT)

who was the first assistant secretary of the navy ?
SELECT "name" FROM table_202_202 ORDER BY "assumed office" LIMIT 1
SELECT "name" FROM "table_202_202" ORDER BY "assumed office" NULLS FIRST LIMIT 1