U.S. Immigration Records are a powerful source of useful genealogical and family history records that can assist you in your search for your immigrant ancestors. Many of these records and indexes to these records are available in FamilySearch database. They can help you determine when an ancestor arrived in the United States, the port they left from in their home country and which port they arrived in when they arrived in the United States. They can also be used to identify other family and community members who traveled with them along with other personal information.
The FamilySearch Wiki provides some excellent instructional information about using these immigration records. To use get to these articles, go to the FamilySearch Wiki and type the words Immigration records in the search field. Scroll down to see hundreds of valuable and useful articles on using Immigration records.