Sivertsen, Snedkerlien, Norstegaard, Johnson

I am the great grandaughter of Fredrick Sivertsen from Guisko, Sonmore Norway. Fred changed his name to Fred Severson in America. Fred married Lena Lien (she is the daugher of Thorstien Rasmussen also known as Thorstein Snedkerlien later as Tom Lien in America). My other great grandparents are Simen Sjugurdson Norstegaard from Dovre, Gudbrandsdalen, Oppland, Norway. Simon changed his name to Simon Gordon when arriving in America. Simon married Josephine Johnson. All of my great grandparents settled in Dovray, Minnesota. I know that there are living relatives, as my great grandparents came from large families, and only a small few came to America. I am desperately searching for my living relatives in Norway.