Hello
I have traced my Greatgrandfather Charles Olsen born 1842 to Hull UK, however it would appear his real Forename was Torgen and on his marriage certificate issued in Hull when he married Ada Hall in 1902 He gave what would appear to be Reetas Olsen as his fathers name and his occupation as horse dealer. I suspect that they are Swedish. Any help as to how to search Swedish records would be great.