Here is Marit with her parents in the 1865 census:
http://digitalarkivet.no/cgi-win/webcens.exe?slag=visbase&am...Note that Gulbrand Gulbrandsen, 10 years old, is an illigitimate son of Jørønd Evensdatter. I have a feeling he might be the "Gulbrand G. Moen" that lived next to Gilbert H. Moen in Sverdrup, Minnesota. I'll try and confirm this later.
Here is Gulbrand/Gilbert with his family in 1865:
http://digitalarkivet.no/cgi-win/webcens.exe?slag=visbase&am...His name is spelled "Gudbrand" here, but spelling always varies on old Norwegian records.