If you are researching an immigrant, they may not have been the only one in the family to immigrate. People often travelled in groups, consisting of friends and family members. Once an immigrant was established, they often encouraged others to follow. If you research their family back home, you may discover several others who also emigrated. Sometimes passenger lists will mention that they were joining a relative.

Departure of an emigrant ship. Credits: Steenkamp, collection Nationaal Archief