The first two persons tested have a 12/12 match, which was expected, since both have a paper trail going back to the same ancestor. This Most Recent Common Ancestor is Bernardus Calewaert (1696-1760), who lived some nine generations ago in Beveren-Roeselare, Belgium.
For more information about this Callewaert lineage, please look at : http://users.pandora.be/johny.callewaert