1856 248 South Second, Philadelphia, Pennsylvania.
John A Keenan 185 appeared on April 1, 1856 in the Photographic and fine Arts Journal. (New York, New York.) April 1, 1856, Vol. IX, No. 4, P. 124. In an article entitled the Photographic Galleries of America. Number Two, Philadelphia. The author visited 57 Galleries in Philadelphia.
Keenan, South 2nd St. — A very excellent ambrotyper. The tone and color of his pictures are very fine as a general thing. Some pretty fine paper photographs, which speak the artist.
There is need of much improvement, however, in this establishment.
John A Keenan is recorded in other photographic directories, but is included here because of the first-hand account of his work.
 Not all first names or complete addresses were recorded in article. Craig’s Daguerreian Registry was used to assist in identification when possible first name and address were added.