CREATE TABLE table_204_490 (id DECIMAL, "position" TEXT, "name" TEXT, "height" TEXT, "weight" TEXT, "birthdate" TEXT, "birthplace" TEXT, "2009-10 team" TEXT)

who was the oldest member of the american 2010 olympic women 's hockey roster ?
SELECT "name" FROM table_204_490 ORDER BY "birthdate" LIMIT 1
SELECT "name" FROM "table_204_490" ORDER BY "birthdate" NULLS FIRST LIMIT 1