I am looking for any family of Severin Olsen. He left Norway around 1897 or so and lived in Boston, MA. He was a piano maker for Chickering and Sons. His brother's name was Theodore. He had a nephew who also left Norway and lived in Boston. His name was Roy Larsen. Roy died in 1921 and Severin paid for his burial. Any one who knows of this Olsen/Larsen line please respond. Roy Larsen is my great great uncle.