Anna,
Thank you for your reply. I have Oscar's wedding record which says his parents are Anders and Maren Anderson. However, when I look at the census records in Dunn co, Wi and immigration records, I find Anders and Maren with a family but no Oscar. The Andersons are also listed as being Norwegian, but Oscar is Swedish. I believe they were a couple who assisted Oscar when he came to America, and he listed them as parents when he got married. His name is spelled Oscar Northstream on land records for Dunn county. His son's birth record says he was born about 1857 and he must have immigrated to America between 1880–1884. Otherwise, I really have no other clues. I think this is a brick wall we won't get through. Thanks though.
Tracy