More downtown:

Apache Casino
Buckleys Jackpot Club
Club Bingo
California Hotel
Carousel
Cinnabar
Western Hotel
Frontier Club
Friendly Club
Fortune Club
Golden Slot
Lucky Casino
Lucky Strike Club
Monte Carlo Club
Hotel Nevada
Orbit Inn
Rendezvous (Big Nickel)
Silver Palace

Good luck in putting together a chronology of these. I think Perloski did something like this several years ago. You might want to get his list and the links between the clubs.