Pam, the more information that comes in is only making this that much more confusing.
So much of this just doesn't square up.
If everything is to be believed, at least at one time, the "Plaza", the "Palace" and the "Circus Room" all existed in the same location during the same time.
Of course, that's not possible, so many of these attributions have to be incorrect.
Check out this flyer for the Circus Room:

The mystery continues.