Bibliography
Here is a list of books that relate to Warren County and its people.
A Genealogical Record of the Descendants of Andrew Newbaker of Hardwick Township, Warren County, N. J.: Together with Historical and Biographical Sketches and Illustrated with Portraits and Other Illustrations, Abraham James Fretz, Union Times Print, 1908 - 40 pages
History of Sussex and Warren Counties, New Jersey: Compiled by James P. Snell, Assisted by Prof. W.W. Clayton and a Numerous Corps of Writers. Philadelphia: Everts & Peck, 1881. SPCOL/UA SNCLNJ F142.S9S6
History of Warren County New Jersey, George Wyckoff Cummins, Ph. D., M. D., Lewis Historical Publishing Company, 1911.