Recently a DNA project for the surnames Berkhof(f), Birkhof(f), Barkhof(f), Berghof(f) and Berkhoven has started at Family Tree DNA. See: http://www.familytreedna.com/public/berkhof-berkhoff/default...

Till 30 June 2009 they have a 50% promotional discount for a combined 37 marker Y-DNA & mtDNA test for $119,-. The regular project price is $248,-

Tests can be ordered at: http://www.familytreedna.com/group-join.aspx?Group=Berkhoff&...