Olson

I am looking for Karl Ludwig Eugen Olson who I believe was born in Farsund, Norway in 1869 . He was married in South Africa in 1898 to Carrie Harvey so must have emigrated between 1869 and 1898 whether as a child with his parents or on his own as an adult.. As far as I know they came from Christiansand and had a shop in Oslo called Olson and Sons or Olson and Company. I would appreciate any help[:)]