When I was on the Kojo Nnamdi show a few weeks back, an older man named Larry Rosen called in. Rosen used to run a drug store at 14th and Clifton in Columbia Heights in the 50s and 60s, and was talking about how he started a blog with his memories. There's a lot of interesting stories, the most recent of which are the 1968 riots after Martin Luther King Jr.'s assassination, when his pharmacy was burned down. He talks about a lot of other things too: life in the area, his store, when boxer Joe Louis came to his brother's liquor store, World War II experiences, and a funny story about buying and selling a monkey.
It's a pretty interesting read, with some pictures as well. Pretty cool to hear about the history of the neighborhood first hand.