Passenger lists after 1924

Hi! I know my grandmother emigrated here from Norway (Stavanger area) in 1927 or 1928, but the Ellis Island records and this website seem to only have lists to 1924. Am I missing something? Does anyone know where I can find this? I have found the ship that my grandfather came over on in 1917 and would like to know what specific ship my grandmother came over on. Are there other ports she may have come to besides New York and if so, where and how can I get the records?