The Elizabeth A. Beam Local History and Genealogy Library at Lambert Castle


The Passaic County Historical Society does not hold any official Vital Records such as birth, marriage and death certificates. If you are looking for Vital Records, you must contact the State Archives


unnamedThe PCHS Library encompasses a rich collection of materials related to the history of cities and towns within Passaic County as well as an extensive body of genealogical information on thousands of families who lived within the county. The library contains over 2,800 books, including atlases, city directories, books by local authors, published genealogies, and local histories. For more information on some of the books in our collection please review our partial library inventory list. The library has a manuscript collection, thousands of family group sheets on file, more than 200 maps and thousands of photographs.

For more information about the archival collection please review our list of finding aids. Please be aware that this page will change and the list will grow as we continue to process collections.

Please confirm our hours of operation before traveling long distances as they may be subject to change at any time.

To make an appointment to use the Library, call (973) 247-0085 ext. 204 or email the library at

Access to the library is free for all members of the Passaic County Historical Society. Non-members are required to pay the museum admission fee. This entitles non-members to a museum tour and use of the library.

For those seeking research assistance from our library staff, please complete the Research Request Form. For more information regarding research at the Passaic County Historical Society, please refer to our research page. If you are interested in reproducing a photograph from the Society’s collection for a publication, exhibition or similar use, please review our Photo Reproduction Policy which outlines permitted uses and associated fees.