Information on Karen Suderud

My second great grandmother was born September 30, 1834, in Hedmark, Norway. Her father, Lars Larsen, was 37 and her mother, Inge Halvorsdatter, was 41. Her last name becomes trickier as some have her as Larsdatter but others refer to her as Karen Suderud. Perhaps this is a farm name. I have seen from your records that she married Even Pohlsen December 2, 1857, in Hedmark, Norway, when she was 23 years old. Information relating to her birth, her parents and grandparents would be wonderful. Thank you so much for your help.