Achterbergs in ND, etc.

My great grandmother was Mathilda ACHTERBERG.She was born 28 March 1867 in Pommern, possibly Stettin.She married Carl ALBRECHT 02 June 1892 and came to the US the same year and homesteaded in Wells County, ND.Her mother's name was Pauline, and I believe her father's name was August.She had two brothers that I know of, Paul and Amundus.Both brothers originally settled in ND.Amundus later moved to Michigan and I'm unsure as to where Paul moved.Her father, August, supposedly came to the US also and may have settled in Texas.I am interested in sharing information with anyone else who is working on Achterberg lines as I believe the name is unusual enough that we can make some pretty easy connections.