Ole Pederson Ohre and Johanna Kristiansdatter

I'm looking for the journey of my greatX2 grandparents. What I know: Johanna Kristians'datter born 1845 was the daughter of Kristian Jacobson. She had a sister named Elizabeth. Ole Ohre born 1939 was the son of Peder Olsen and Anne Bertil Lodengaard. Their first child (Anne) was born in 1867 and second child (Peter C) born in Wisconsin in 1870. So emigration must be 1867-1870. They somehow got as far as LaCrosse Wisconsin, then traveled on foot to Martell Wisconsin where they settled. We believe they were from the same area of Norway - Østre Gausdal, Oppland, Norway - as their friends Peder Bertilison Berge and Mari Olsdatter (my other great X2 grandparents)