I am also looking into another family promenient in Coxsackie in the early years. The Conyns, (Conine). Philip Lendertse C. was a close neighbor and there were many familial ties with Robert's , Mathias's and probabley and probabley Hendrick's. This is a bit of a puzzle because of he many various branches of Conyn's. Any info on this that would clarify the connections.
E.G. Coxsackie marriages has John Conine marrying Cath'ne V. D. Bergh 11/30/1797. and on 2/15/1798 Leonard Conine marries Cath'ne V.D. Bergh. One of these I can be pretty sure about the other less so. Te abpismal sponsors start to disappear in that era and it makes it hard to track. J.D. Beers has info on the Bronk connecion but isn't always sure either.