Probably how the IndiansNative Americans pronounced it.
Or the Dutch.
Or they were never taught phonics.
Or just because they can.
After all, they have a New Haven Railroad, er, Conrail bridge, er walkway over the Hudson..
A commute from/to Poughkeepsie each day certainly would be a healthy hike. I would assume he/she does the Metro North thing rather than drive..
He does do the Metro North thingie and, so far, has managed to avoid the ones that tend to run into things or go around curves too fast.
Languages such as Dutch tend to run a double vowel such as OO or EE without producing the sounds we assign those letters in English.