While this an interesting old building in Chinatown it is not as historically significant as the alley to the right of it, which leads back a block and then turns to the right to end at the back of Ford's Theater. When John Wilkes Booth shot Lincoln at Ford's, he ran out the back, jumped on his horse, and went riding like hell out this alley, turning right past the front of this building and galloped off to hide out in the woods in Maryland. The poor dope who was holding his horse was thrown in prison for a few years, even though he was not part of Booth's conspiracy and was clueless about the events in the theater until too late.