This online collection includes over 2,000 items from 12 collections that highlight the New-York Historical Society's Civil War holdings in the Library's Manuscript Department, the Department of Prints, Photographs, and Architectural Collections, and the Museum Division. They include manuscript correspondence, photographs, stereographs, drawings and sketches, prints, patriotic stationery, and recruiting posters.

Click here to view the full collection.

Card catalogs available in the Patricia D. Klingenstein Library's reading room provide access to portions of the manuscript collections not yet included in the Klingenstein Library's online catalog. Separate card catalogs also exist for the newspaper and sheet music collections. Also available on-site are non-electronic finding aids, a published guide to the manuscript collection, and printed inventories of circus ephemera, church records and extensive vertical files.

The Society’s ephemera collections include lottery tickets, trade cards, billheads, tobacco labels, theater playbills and countless other types of material that were created for temporary use but have survived to illuminate everyday life and popular culture. A highlight is the Bella C. Landauer Collection of Business and Advertising Art, assembled over a forty-year period by the tireless Mrs. Landauer (1874-1960) and arranged alphabetically into 100 product categories, such as Banking, Food, Hotels, Theatrical Enterprises, and Transportation.