This index contains listings of approximately 2,750,000 individuals who arrived in United States ports between 1538 and 1940. These records can provide valuable family history information to those with immigrant ancestors. The information was collected from published passenger lists, naturalization records, church records, family and local histories, and voter and land registrations. This knowledge may help you determine additional information, such as the name of the ship on which your ancestors sailed and the location of their naturalization.