Sevald Martin Pettersen

I admit I'm not the most patient and best searcher but I've at least tried to find Sevald Martin Pettersen. His family name can also be Petersen or Pedersen. He was from the Hadsel area in northern Norway and born June 7, 1887 and emigrated to the USA and according to rumours lived his life in Oregon where he married and had at least one son maybe named Ronald. Any keyboard detectives who can help me?