I haven't been on here in a while... I found it at the big park in town, if I remember right it was somewhere between the basketball courts and the road. I also found an old toy gun. I posted this find in another section and some folks got back to me about the business, I'll leave a link.
http://www.treasurenet.com/forums/tokens-tags/298002-billiard-parlor-tag.html
Saw your posts yesterday about both these threads. Thought that I would share with you and others what I found out by checking around with some of my historical sources....
Mackaydon was correct, the owners were Chris and Clara Tagatz. She did die in 1986, and here is the link to her obituary where it talks about the business they owned for about 25 years.
http://archiver.rootsweb.ancestry.com/th/read/WIMARQUE/2002-01/1012182134
Here is a picture of his/her headstone. Both are buried in Montello, at the eastside cemetery:
The business was located on West Montello Street. It was in part of what is now Granite Falls Supper Club located at 36 West Montello Street. You might know where that is? Or else a quick street view check on Google Maps has a clear shot of it.
Apparently this building used to be 2 separate businesses back then. If you have ever been inside Granite Falls Supper Club, you can easily tell where they used to be split. The bar area and dining room were at the time were separate businesses, and the Billiard parlor would have been on the west side (right side if your looking at the front of the building from the street).
The guy that I talked to remembered when it was there and said that it was just kind of a place to hang out, shoot pool, and take your kids for a quick candy treat. If you have any other questions, let me know and I will see what I can find out for you.