The main branch of the Trenton Public Library is home to Trentoniana, an enormous local history and genealogy collection. Trentoniana's holdings include photographs, manuscripts, scrapbooks, trade cards, postcards, diaries and maps that help researchers explore the rich history of Trenton, New Jersey.
Trentoniana's collection includes the most extensive representation of Trenton histories, books, monographs, serials, scrapbooks, periodicals, pamphlets, etc. A significant portion of this collection consists of local newspapers (most on microfilm) printed in Trenton from 1777 to the present. Several indexes to parts of the collection are available. [SOURCE]