Immigration info for Christina Marie Einersdatter

I know that my grandfather, John Oan Thorson Lappegard Haugen arrived here on the Baltic on 4/21/1905 from Liverpool. I still have not found any information about his wife, my grandmother Christina Marie Einersdatter Pederson Peterson born 6/28/1886 in Stavanger, Norway and died 11/15/1961 in Ferndale, Wa. Her parents were Einer Pederson 1842-? and Berta Elizabeth olsdatter Sunde 1849-1910 and I have only 1908 as a suggestion for her arrivial here in America. There were 5 of her family who came to America and 3 that stayed in Norway. Would love to find out how she got here and also what year her father passed away. Are there places that I can check it out?