Hi Erin, Thanks for the response. The family was not in Wisconsin in 1860. They had moved to Fillmore Cty. MN as Birgit's father, Halvor was drowned in the Rush river there in 1857 while looking for work.
What I was trying to pin down was the actual location of Rock Prairie Wis. One of her grandchildren put this in an essay written as a school assignment in the mid 1930s. It isn't something needed, just curiousity.
Halvor Halvorsen was born on the Kvenrud farm in Opdal, Numedal Norway. Her mother came from the same locality so that much is pretty well documented.
Again, thanks for your response..........Dan