"'Ve-le-is-sing-nen.' (Or so it sounded to us.) That was definitely a V sound in the beginning, but then it got lost in a slosh of vowels and S’s."

The New York Times has an interview with Ms. Jones-Bos, the Dutch ambassador to the United States to talk about the Dutch pronunciation of names in NYC.

http://cityroom.blogs.nytimes.com/2009/09/04/dutch-pronounciations/?hp

Another quote:

"'Bowery? In the original Dutch, it was was “bouwerij,” which had an intimidating ending for an English speaker."

The interviews also links to this funny article: Breuckelen Express (Breuckelen is the original name for Brooklyn).