Isaac Harris. Harris' General Business Directory, of the Cities of Pittsburgh and Allegheny: And also of the most flourishing and important towns and cities of Pennsylvania, Ohio, Western New York, Virginia, &c., containing a correct outline of their general business, together with a statement of the canal and steamboat business, and commerce on the waters of the West; a statistical view of the moral, religious, and literary societies, and a variety of important general and statistical information, with an index, at the end of the volume. A. A. Anderson, Pittsburgh, 1841. Internet Archive harrisgeneralbus_01harr.