leeann10 on Family Tree Circles

Looking for information on Ole and Dorthea Carlson. Both were born in Norway in 1847 but I don't know the exact dates for them. They were married in abt 1870 since the 1900 WI census shows them being married 30 years. They had 13 children but only 7 lived. I only know the names of their last 3 children: Petra,Carrie and Joseph(my great grandfather) All of which were born in Michigan Dorthea died in 1904 in Barron County,WI.