Relatives of John Johnson, Two Creeks, WI

I am trying to find relatives of John Johnson who lived in Two Creeks, WI from about 1850 to 1873, in order to share genealogy information. I am looking for information on his siblings and their families as well as his children and their families. John (name is John Halvorsson on the passenger list) emigrated from Norway in May 1850 on the Schooner Ebenezer along with his father and mother (Halvor and Inger Johanneson) his wife Karin (Karin Halvorsson) and seven siblings. I believe they came from Haeggebostad Pastorate in Norway, but I am not sure. John Johnson originally settled in Dane County, Wisconsin, but by 1853 he had moved to Two Creeks, Wisconin. He subsequently moved to South Dakota and then Washington State, where he died around 1897. Any help on tracking down John's siblings - Martha, ingeborg, Karine, Gunhild, Anne, Halvor and Carl - would be appreicated. Thanks Richard