Dear Mr. Pedersen,
Thank you for posting your request on History Hub!
We suggest that you review the National Archives website for immigration-related research tips, read this resource information about the history of Norwegians in the U.S., and search for his emigration from Norway to the United States using on these websites: https://www.familysearch.org/wiki/en/Norway_Emigration_and_Immigration; and
We also suggest that you search for information on Ancestry. There may be a fee associated with this website. To view it for free using one of NARA’s PCs, please consult our web page at https://www.archives.gov/locations/ for the nearest NARA facility.
We hope this is helpful. Best of luck with your family research!