1856 380 Market Street, Philadelphia, Pennsylvania.
William H. Gledhill was recorded in the April 1, 1856 Photographic and fine Arts Journal (New York, New York). In an article entitled the Photographic Galleries of America. Number Two, Philadelphia. The author visited 57 Galleries in Philadelphia.
Gledhill, Market Street. “Solargraphic and imperishable Ambrotypes, by judges pronounced to be perfection.” I pronounce them simply Ambrotypes, in the common acceptation of the term; but how far they may be Ambrotos or indestructable, or, as he has it, imperishable, I do not know, but leave it to the decision of future years. I also pronounce them very good, sharp and clean, but not perfection.
William H. Gledhill is recorded in other photographic directories, but has been included here because of the first hand account of his work.
 Not all first names or complete addresses were recorded in article. Philadelphia Photographers, 1839-1900 and Craig’s Daguerreian Registry was used to assist in identification when possible first name and address were added.