I stumbled across this link at work today and skimmed it. I plan to spend more time studying it in depth. Lots of old maps and detailed descriptions of boundary changes, if you're into that sort of thing.
http://www.state.nj.us/dep/njgs/enviroed/oldpubs/bulletin67.pdf
I interlibrary loaned this some years back before it was scanned and put online :)
An excellent resource.