Ole Andersen Trollerud

My greatgrandfather left Norway in 1903 heading for America. He was on the ship Hellig Olav and arrived at Ellis Island April 10th 1903. He was born in Lier, Norway January 1st 1872. His brother Bernt had emigrated earlier. I will be grateful for every information about these two brothers. The family in Norway did not seem to have much contact with them. When their mother died in 1920, they are mentioned with unknown address in America.