Information Regarding Ole Engebretsen Immigrated to US IN 1883

My great grandfather Ole Engebretsen at age 20 migrated to the U.S. in 1883 from Norway aboard the Republic. He would later change his name to Ole Davis. I am wondering if anyone in Norway would have a record of Ole and his relatives? He was born in January 1864 or possibly 1863. I can provide more information about Ole's life here in America as well.