Came across a commercial from May 1989 advertising Gaslight Square.
https://youtu.be/yfxvvn8uxUU?t=619
To be honest, I don't have any memories of Gaslight Square. I would have been 18 at the time and was much more interested in rides and having fun away from the parents! :) However, after viewing this commercial, in hindsight I'm really glad this theme was quickly replaced.
-Tim
I remember it. It was a complete and utter failure. I think it lasted one year.