Passenger List for Elling Dahlen

I am looking for the passenger/ship list for Elling and Marit Dahlen who came from North Aurdal, Valdres Norway to America in May of 1865. Their 3 children came with them: Nels, Ingebret, and Knut. Any help you could give me on this would be appreciated. The parents were both born in 1835. Thanks so much...