The West Chicago Garden Club formed from the West Chicago Women's Club in 1925

Would this be enough for you to make an attribution? Did Women's club run gambling/card games

I do like the fact that the club was formed in 1925. Everything else is a bit iffy. However, if you and Gene believe the GC chips are from the West Chicago Garden Club, great I'm in.

Our "friend of the hobby" told me he couldn't find a Garden Club. I'll send him this info and see what he comes up with.