Interchange letters in Dutch names 
Dutch first name's vary immensely due to the use of interchangeable letters. The letters 'j', 'y', and 'i' are interchangeable, therefore Antje, Antye, or Antie are all derivatives of the same name.

Gelderland surnames often end in hof, ink, inck, ing or loo Zeeland surnames often end in aert, ge, ghe, ick, uck, se or sons or have French prefixes of de, d'or ver Zuid Holland surnames are often prefixed with de, den, van, vande, vanden or van der.