Wilkin / Wilken is a rather unusual name for a Nowegian. I would assume this record is somehow tied to your family:
Johan Henrik Wilken (Andersen)
Born 10 Aug 1832 in Bergen
Baptized 16 Sep 1832 in Nykirken church
Father: Anders Hansen Tømmerdal
Mother: Anne Marie Wilkenhttp://digitalarkivet.no/cgi-win/webcens.exe?slag=visbase&am...
Also look for the spelling "Vilkin/Vilken". The name could possibly originate from Granvin, Hordaland.