We're looking for the birth & emigration records, if possible.
His name in the United States:
John Fredrick Johnson
born 10 May 1820 or 1822, Norway.(Death record shows 1820, all other records show 1822).
Possibly born or lived in a place similar to Oldenberg, Norway.
Records show he emigrated in 1861. He married in the US in 1864, unknown if he was previously married in Norway. He lived in the following areas: Utah, San Francisco and finally Sonoma county, California, where he died.
His occupation was shoemaker.
Oakland FamilySearch library