Jerseyman,
I wrote Larry Thornton and asked him to make available the full quality glass plate negatives on the iMap site and DVD. For those of you who are also interested in this you can contact them using the info on the iMap site.
http://www.nj.gov/dep/gis/depcontact.htm
Lets try to get as many emails to him as possible. We are not asking for anything special, just full quality maps that the residents of this state paid for all those years ago.
Guy