It is nice to have a current family connection to a historic site Ken E. It helps all of us to understand the history of the lake. Glad you are posting! From the description it sounds like it wasn't really a "casino" as we all envision today as a Foxwoods or Taj but a place people could have fun in those activities deemed "wicked", like bowling or dancig.
I hope you can share some of the stories that you were told.