I am sorry if I wasn't clear. I've been searching quite a bit before I posted my query. I thought my query was limited finding a Norway marriage record and a census record for Dorthea Olsen and Anders Andersen.
I still don't have these two things although I did find a 1865 census record that must be related. I found a Dorthea Olsen (who I think is a widow) with 3 children named Olsen and an illegimate son named Anton Andersen born in Chr. in 1858. I am wondering if mistakes were made in their census as they are in the U.S. census.