Here they'll find everything needed for fruitful genealogical research. Main entries in Passenger and Immigration Lists Index provide information such as name and age of immigrant; year and place of arrival, naturalization, or other record which indicates person indexed is an immigrant; code indicating the source indexed and the page number in the source which contains the record; and the names of all listed family members together with their age and relationship to the main entry. In addition, it provides cross references for every accompanying passenger to main entry.