What was know as the Washington barracks back in the 20”s is it still know as that?

I'm a little confused by your question, but if you are asking if the "Washington Barracks" is also known as this marine barracks, it is most likely a yes. The marine barracks at 8th and I have some very deep history, and is the only untouched building from the British attack.

8th and I Marine Barracks

Yes 8th and I