Oh, and here is the page that got me to the info about Nels Knutson. It appears to be a listing of people who used the last name of Laugergaard. That is what Nels used, too. I am assuming this is what comes close to what might be called our clan in Norway.
http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=SHOW&db=9-4-2009&recno=20512