Ancesters

I am knew to this geneaolgy thing and am hoping someone will be able to give me information as to who and where my Great grand Parents were. Great Grandpa was Anders Pedar Sorken Born in 1839 at Roros, Noway, and immigrated to USA in 1884 along with Greatgrandma Ingred olson-Howoien and I think 2 children one of whom was my Grandfather Andrew SorkenBorn 1880 in Roros, Norway and settled in the Souix Falls area of South Dakota USA.