Edwin(Edward) Larson

Still looking for the Norwegian connection for this man. There is 'literally' nothing coming up for this grandfather of my dad's. I have a picture of him. Some details are: B - June 12, 1860 Kristiana, Norway; Husband of Alma Amelia (Ayars) Larson, m-December 8, 1887 in Freeborn County Minnesota, Died December 27, 1932 in Freeborn County Freeborn Minnesota. Came to America in 1860 and there are a lot of possible candidates, but we know there can only be one Edwin/Edward Larsen grandfather to my dad Marvin Edward Trogstad. Can you help me to work this out? :) jodi