Ole Olson Moe

Hello. I just joined this site and forum as I would like any assistance anyone might be able to provide regarding my great-grandfather's parents as well as any information about him. According to my grandmother, Ole Olson (born in Ringsaker in 1818) and his wife Sidsel Onsrud and three of their children (one died in Norway before emigrating) emigrated in 1861 on the Nordylset. According to my grandmother, Ole Olson died shortly after arriving in America. The family settled in Douglas County, Minnesota. In my efforts so far I cannot find an Ole Olson Moe, however, I I have found several Ole Olsen Moe. While the birthdate for one of them (1818) is correct, this individual lived into the early 20th century. There are certain similarities in family history, but I can't tell if these are the same person or not. I'd be very grateful for any assistance or advice anyone might be able to provide!