1865 Ship Lists From Christiania, Norway

Hello, I've been searching for my Great Grandfather, OLAUS NELSON NARUM who emigrated from Christiania, Norway in 1865. He was from Vestre Toten, Oppland. He lived in Wisconsin and from his obituary it never stated anything of the ship he came on. So been trying to seek the information of the ship and passenger lists if at all possible. I've checked the ones that are available with no luck. Are there any other possiblities? I would be greatly appreciated and thanks to all for your help. [:)]