I was doing some research at the Gail Borden Libary and compiled a list of photo studios for the different years using the City directories. I need to go back and find why I don't have 1881-2 and 1889-90 listings. I will update the list at that time. Janet Elgin Photography Studios 1861 (taken from history section in 1875-76 directory) Adams J. M. (established 1861) 1866 (taken from history section in 1875-76 directory) Sherman & Gerlach (established by Geo. H. Sherman 1866) 1875-76 Adams J. M., 1 Chicago 1878-9 Adams S. M., 1 Chicago Doney & Wilcox, 38 Chicago Sherman & Gerlach, 30 Chicago 1880-81 Adams S. M., 1 Chicago, east end of the Bridge Maryatt T. P., 38 Chicago Sherman & Yarwood, 30 Chicago 1881-82 1884-5 Adams J.M. & Son, 1 Chicago Buscey & Morley, 38 Chicago Gerlach C. S., 42 Douglas ave. Platt S. L., 23 Douglas ave. Sherman G. H., P.O. bldg. 1885 Adams S. M. 1 Chicago Gerlach C. S. 42 Douglas av. Platt Stephen L. 23 Douglas av. Sherman G. H., P.O. block Snow F. A. 38 Chicago 1887-8 Adams, S. M., 1 Chicago Gerlach, Christ., Photographer, 42 Douglas Platt, Stephen L., 17 Douglas ave. Snow, F.A., 23 Douglas 1889-90 1890-91 Adams S. M., 1 Chicago, 2d floor Beals F. 23 Douglas ave. Gerlach C. S., 42 Douglas ave. Platt S L, 17 Douglas ave. Sherman Geo H, over 35 Chicago 1892 Adams S M, 1 Chicago Beals Ferris, 23 Douglas ave Gerlach C S, 42 Douglas ave Platt S L 17 Douglas ave Pugsley P J, 42 Grove ave Sherman G H, 38 Chicago Thompson W L, Grove ave and Spring