HI, I finally found some info on my Grandmother Nellie (Haug) Berg. Nellie's cousin was CARL HENRIKSEN, changed his name to Thorp. His parents were HENRIK JOHANSEN & SECOND WIFE, Anne Henriksdatter. Carl's siblings were:
Hermana, Berthea, Anne, Johanna & Marie. Now if you are interested, I can give you the e-mail of this person that has all this info back to the 1600s. We can probably find out more about Anne Mundheim. You said her name was Johnson as a maiden name I believe. It is very confusing, I have read it over several times, the way the names have changed. I remember the Mundheims so well, for they always came to visit my grandmother Nellie & that she was a cousin of Annie's. They were both very easy going people.