I have kind of a unique situation. A boy was born in Sweden on 26 Dec 1881. His name was Carl Enoch. He was the son of Anders Pehrsson and Johanna Lovisa Petersdotter but Anders and Johanna were not married. In 1881, Anders announced his intentions to leave Sweden and establish a new life in the United States.
So, his family and her family decided to provide the couple with the use of a bedroom for the weekend in the hope that they would conceive a child that would be Anders' heir in case he didn't survive the trip.
He sailed for the US and ended up in Soudan, Minnesota. In 1885, Johanna left Sweden to join him, and in October, after she arrived with their son Carl, they were married in Duluth.
I want to create a profile for Carl, but what should his surname be? If Anders and Johanna had been married in Sweden, his surname would be Andersson. When Anders arrived in America, he became Andrew Pearson.
So, should Carl be an Andersson? Or a Pearson? Or a Peterson?
Anders and Johanna are my maternal great-grandparents.