Joseph & Mary Nielson/Neilson

we are searching for information about Joseph Neilson who came to NY (the Bronx) from Sweden with wife Mary. They had around 5 children. One of them was my husbands father, Albert, he was taken away from his parents and taken on the Orphan Trains back to Nebraska. There, he was adopted by Rufus White and his wife, Carrie. He had a happy life with the Whites. He married Amy Mitchell and they had 9 children and lived in Lexington, Nebraska. We would like to know more about the Neilsons and if there are other relatives in Sweden. Joseph worked as a hired hand, maybe on ships. He had brothers. Don't know anything else.