If your Quackenbosses (-ushes) are from NJ area, you might want to try the Passaic County Historical Society library.

They have a one-of-a-kind resource for NJ-NY area ancestors of Dutch descent, which consists of thousands of individual family sheets — written and compiled by a Quackenbush. 

The librarian and volunteer researchers can send you copies of any family members you may be missing (the record entries end about 1940). I'm not sure if there is a cost but they're well worth the money.

Quackenbush Genealogical Sheet Collection:
Files of individual sheets, arranged by family name, documenting Passaic County’s early Dutch, English, and other families from the 1600’s-1800’s. A unique and invaluable research tool.

http://www.rootsweb.ancestry.com/~njpchsgc/pchs/pchs_collections.htm

General Library Index:

http://www.rootsweb.ancestry.com/%7Enjpchsgc/resources.htm

Best of luck.

Forgot to add this snippet from the NYG&B (New York Genealogical & Biographical Society). Apologies for not including it all, it was just a snapshot reminder for myself. You can call them for info about this book, it's self-published and not available on the web. http://newyorkfamilyhistory.org