Christiana

I am looking for information on my grandfather who emigrated to America through Boston Massachusetts from Christiana Norway around 1889. He was 19 years old, the story was that he had a fight with his brother and ran away. His name as I know it was Reinhardt Forguson. I believe his mother name was Gurine Gulbrandsen and his father Forger Nelson. He had a brother Jon and a sister who's name might have been Metia or Tita. His father was a fisherman who died at sea, but I do not know when. I was told that his brother did come to America to visit him around the 1903 or 1904, but I can not find any information on his family.[?]