Here are some real picture postcards (RPPCs) that show Morgan Avenue ca. 1910. We've posted before about RPPCs being very popular in the first decade of the 1900s. Cameras were becoming more affordable and portable, and traveling photographers took pictures of everything from neighborhoods to parades to disasters. And we are happy they did so, because these RPPCs are invaluable documentation of local history.
Morgan Avenue was the old name for 111th Street and Monterrey Ave. The picture of the stores would be just east of the Metra tracks, facing east. We're trying to place the other one. It could about where Morgan Park High School is now, facing west. The high school was built in 1914-16, so this would predate that. Actually, it predates Morgan Park's annexation to Chicago, which happened in 1914. Another option is that it could be west of Western Ave., heading toward the cemeteries.