There was a Park Hotel at 990 E. Broadway, don't know if that was the place? They didn't take out an ad in the yellow pages, so no further info.

Fuller & TGT don't list any gaming at 990 E. Broadway, for whatever that's worth.

They do list gaming at 940 E. Broadway, which was the Pershing Hotel. Confirmed that address with the phone books "just in case".

I doubt that any of that helps, but at least you know I tried...