Below is the Sanborn fire map for Washington Circle in 1888. It’s pretty amazing to see how many residential structures there are at the time. Not only that, but quite a few of them were frame structures (in yellow).
Here’s the Google Map of the same area today.[googlemaps https://maps.google.com/?ie=UTF8&ll=38.901834,-77.049941&spn=0.003352,0.005171&t=m&z=18&output=embed]