Dorte Lovise Kristoffersen

I have been attempting to locate immigration records on Dorte Lovise Kristoffersen. I have not been able to find her on Ellis Island website nor Digitalarkivet Emigrants from Oslo website. She was born in Fet, Akershus, Norway in 1875. Fet bygdebok says she immigrated to America in 1892. I do not know whether she was married or not. Her parents were my gggrandparents, Kristoffer Gulbrandsen born in Fet 1823 and Karen Johannesen born in Askim 1846. Any information you may be able to provide will be greatly appreciated. Thank you. [:)]