Fort Washington, On the Site of Cincinnati Small 320×253 Medium 640×505 Large 1024×808 Download Tiff Original 2400×1894 | (8.9 MB) Description Fort Washington was a fort in the early history of Cincinnati, Ohio and was used by General Josiah Harmar. Keywords Cincinnati, Indian War, Josiah Harmar, Northwest Territory Galleries 1789-1860 American Republic, Ohio Source: Benson John Lossing, ed. Harper's Encyclopedia of United States History (vol. 4) (New York, NY: Harper and Brothers, 1912)