Trying to get more information on his Father, Dirk Shiver Schaffer (1400) & Grandfather Derk Schaeffer (1380). They are from the Netherlands. Thank You, Hayley Shafer
You can contact the administrator Martin Kok (neem contact op). and ask for the sources. He will be probably in the Archive of Groningen. On the internet no further retrieval . see zoekakten.
Onderzoek in Duitsland » Descendant of Peter/Petrus Schaeffer/Schoffer
