Ole Rasmusson - emigrated 1861

Ole Rasmusson, born in Norway October 1836, emigrated in 1861 and settled as a farmer in Wanamingo, Minnesota. In the Minnesota 1870 and 1880 census he and his family are listed as Rasmusson's; in the Minnesota 1900 census he and his family were listed as Finne's; Ole R. Finne. Ole's first son was named John, and second son was named Rasmus Olaus. Ole's first wife, and mother of their daughter Mary K. Finne, is listed as Hilma. Ole and Hilma may have emigrated as a married couple. Mary K. Finne was born in Minnesota 1864 and Hilma died before 1868. I would appreciate any assistance in finding Ole Rasmusson in the passenger lists and any other genealogical information. Thank you for your time and assistance. Robert van Haastert