Brita Nelsdotter Meland and Ola Ivarson Vikoren

I am looking for information on the above names. Could you find when they emigrated to the USA and where was their destination. Also, were they married in Norway or in the USA (Minnesota) where their family now lives. Brita Nelsdotter Meland was from Balestrand and born 8/20/1835. Ola (Ole) Ivarson Vikoren was born 3/25/1839 and was from the Vik area. I think that Ola's parents were Ivar Hansson Vikoren and Guri Olasdtr Honsi of Vik. Thank you for any assistance!