You can update and add a great deal of detail to your 2005 listing above with the online scanned records.

For example, your 'Butolf Anderssen' and family still at home on the Gotaas farm in Skogn, Nord-Trøndelag -
http://digitalarkivet.uib.no/cgi-win/webcens.exe?slag=visbas...

In 1801 the son Anders living on the farm Tutterøen in Frosta, Nord-Trøndelag -
http://digitalarkivet.uib.no/cgi-win/WebCens.exe?slag=visbas...

That gives his birth year as about 1770 and the actual baptismal record showing him as Andreas is shown at the bottom of the left hand page -
http://www.arkivverket.no/URN:kb_read?idx_kildeid=16391&...

You'll be able to find many details online.