Syverinne Dokkesveen

I'm looking for any emmigration or immigration information for the following person, but having great difficulty finding it. Here are my known clues: - name referenced as Syverinne Dokkesveen in Iowa book (recent) - 1910 Iowa census denotes first name as Severine - census says immigrated about 1882 - census says age was 69, so born in 1841 in Norway - married to Hans Andreas Olsen (Halsrud) - Hans emmigrated 1873. I couldn't find any good match on digitalarchive -- maybe you can? Also, does the name Dokkesveen denote something about being from Dokka?