The Harpooners of the Sea Unicorn put on the first St Louis area Sherlockian convention in the early 1990's (we ended up doing two). We called these conventions, The Games Afloat, and we held them on an old showboat called the Goldenrod. (It is on the National Historic Register)
Ten years before, before I know of scion societies and Sherlockian groups, I had attended the play "Sherlock Holmes', done as a comedy on the Goldenrod. I still have the play bill somewhere and will add it when I find it. It was a very fun night.
I just found this bit of news about the Goldenrod.
Here is a picture of what it looked like in it's glory as a working show boat.
Goldenrod Showboat Set for Scrapyard