1856 352 Pennsylvania Avenue, Washington, D. C.
G. W. Granniss was recorded in an advertisement as part of the partnership of Root & Granniss. The advertisement ran from July 29 to August 11, 1856 in the Evening Star (Washington, D. C.) Root & Granniss, M. A. Root. G. N. Granniss Photographic, Ambrotype, and Daguerrean Gallery. Is Now Open At No. 352 Pennsylvania avenue, near Seventh street, where Photographs, colored or plain; Ambrotypes tinted and colored, new style; and Daguerreotypes, are taken in the highest perfection of the art.
The Public are respectfully invited to visit our Gallery whether desiring pictures or not.
G. W. Granniss is not recorded in other photographic directories.