I was looking at your Aanerud's on Find A Grave and then was able to find some of them on Ancestry. It looks like your line settled in Donnelly, Minnesota and my Aanerud line in Silver Lake, Iowa. Many of them, however, moved to Glenville, Minnesota. My fifth great grandfather was Christen Aanrud and his wife Ingebor Stenerson. I would place his birth around 1800 as he had a son, Christian Aanrud born 1821. This is the furthest I have been able to find so far.
Christen's son Christian Aanrud was a neighbor in Norway to Ingeborg Stenersdatter whom he then married in America. Christian was born in Faaberg, Lillehammer, Norway.
I think there could be a connection in Norway, but at this point have not found one.
Cheryl