Pronouncing Dutch names

Since I arrived in the Netherlands, I found out that most of my way of saying names was wrong. Just a small example is Evert Anthonissen. I would say "ev-ert an-ton-is-sen". Carl Staple says the name something like "Ay-fert ahn-tone-iss-son". The key man at Artitec's name is Herbert Tomesen. I would say "Tom-uh-sen". From Ab Hoving, I found out that the correct way to say Herbert's name is "Tome-ay-sen". I try to hide behind the fact that I have never been around native Dutch speakers, before. I only was around my Afrikaans-speaking manager in 2001 to 2004. He helped me learn Dutch and helped me do translation.