If you look hard enough, you can see streetcar lines in these maps.
Lake, are you being serious? I looked for these but couldn't distinguish them on these resolutions. I see lots of railroad lines and topographic boundaries, but if the streetcars are down the centers of streets, I am missing that.
I did find it interesting that what I take are downtown houses, are arranged on all four sides of a city block, apparently with a "hidden" courtyard of some sort in the center. I know this was the case and still is with many of the older blocks of townhouses in Center City Philadelphia in the Indepence Hall/Society Hill areas. Is this a correct interpretation or did they undersize the representations leaving much less interior block space, in reality, than indicated?