Can anyone point me to solid documentation on this William's life and death in New Jersey, e.g. church or government records? Or at least a well-documented book or article?

As maintainer of the Hickson/Hixson/Hixon DNA Project, I'm trying to find what is known about him, but most of what I have seen either has no documentation or points to other people's charts. Need something closer to primary sources.

Probably quite a few people here are descended from William, so please post on the message board. adTHANKSvance!