1856 360 Market Street, Philadelphia, Pennsylvania.
Elizabeth D. Mahan was recorded in the Photographic and fine Arts Journal (New York, New York) on April 1, 1856. In an article entitled the Photographic Galleries of America. Number Two, Philadelphia. The author visited 57 Galleries in Philadelphia. Miss. Mahan, Market Street. Twenty-five cent daguerreotypes. We grant the lady every compliment of the art, and hope she will be able to raise her prices.
Elizabeth D. Mahan is recorded in other photographic directories, but are included here because of the first-hand account of her work.
 Not all first names or complete addresses were recorded in article. Directory of Pennsylvania Photographers, 1839-1900 (Linda A. Ries & Jay W. Ruby) was used to assist in identification when possible first name and address were added.