We came across an awesome old photo on Flickr of the York Theatre, sitting at 3640 Georgia Ave. NW, in Petworth, near the intersection with New Hampshire Ave.
Source: Flickr user jbb23927
The theater opened on November 27th, 1919 and was the eighth theater in Harry Crandall’s chain across the city.
The building is still there, albeit in a much uglier state. Check it out below in Google Street View, and check out this good piece written in the Washington City Paper a while back by Lydia DePillis.