Dear Ms. Bolger,
Thank you for contacting History Hub!
It is most likely that your ancestors arrived in San Francisco, CA or possibly Seattle, WA. FamilySearch has a web page that gives an overview of U.S. Immigration Passenger Arrival Records, as well as, a web page that describes U.S. Immigration Online Genealogy Records. The National Archives also has an excellent web page on immigration records including passenger lists that we have in our collection. Please keep in mind that Hawaii did not become a state until 1959 so it is possible that passenger lists for that time period and route do not exist.
Best of luck in your research!