Olevia Johannesen/her mother

Hi, I can't find any trace of Olevia Johannesen who was destined for De Moines, Iowa in 1911 and is confirmed leaving Norway in that year. She was born 23 Dec 1880 Ibestad, Troms. She was going out to meet someone she knew. This could have been her mother who is untraceable after 1885. She was born 1859 Ibestad, Troms. Can anyone find them - you may have to look across America for the answer. Please let me know if you find anything. Regards, Rob.