ALFSEN Family

Hello, I'm a newbie here and just starting out on getting information on this family. I'm looking for information on Ole ALFSEN b. 28 May 1819 in Skien, Norway, married Henrikka MOE, b.8 Aug 1822 and married 18 Jul 1847 in Trondheim, Sor-Trondelag, Norway. They immigrated to America in 1850 settling in Mount Morris, Waukesha, WI. A relative, Jacob Alfsen, immigrated 1855 and settled in Mount Morris, WI. Thank you for any help.