Hans Sigvaart Nelson info

My maiden name was Lokken. However my father went to a funeral of one of his relatives that recently passed and found out that my great grandfathers real name was Nelson. He arrived in the US sometime in the late 1800's and took the name Lokken from an Uncle he was staying with somewhere in the Chicago area, he later settled in Superior Wisconson. His full name was Hans Sigvaart Nelson and he came from the town of Twedeserand somewhere near Oslo. I was wondering how I could go about finding some information on my Norwegian background. I would appreciate any help or leads. Thank you Tammy Clawson, Lokken, Nelson? Edited by - Tammy on 22/05/2002 20:24:55