Elise Christiansdtr Leich married ??? Hanson

I'm looking for information about the marriage of Elise Christiansdtr Leich who was born Naes, Hedmark about 1837. According to my research, she was a sponsor at her nephew's Baptism as of 2/1/1858 Vardal Church record and her farm was Lillehagen. Elise married a man by the last name of Hanson and they had 2 daughters .. Hannah born October 1861 and Hildua born October 1864. They came to the U.S.A. 1866-1867 but I have no information on port of departure or arrival . She was a window when she married in the USA in 1868. Can anyone please tell me how I can find out more about her marriage and the full name of the man that she married?? Thank you!!