....did I miss any?

List of Downtown Las Vegas Casinos, including years of operation:

21 Club, 1930s
49'er Club, 1951--1952
Binion's, 2004--
Bird Cage, 1958--1959
Boulder Club, 1931--1960
California Club, 1946--1970
California Hotel, 1975--
Carousel, 1967--1974
Castaways, 2000--2004
Cinnabar, 1951--1959
Club Bingo, 1962--1983
Club Savoy, 1945--1957
Coin Castle, 1970--2000
El Cortez, 1941--
El Dorado Club, 1947--1951
Fitzgeralds, 1988--
Fortune Club, 1952--1955
Four Queens, 1964--
Fremont, 1956--
Friendly Club, 1978--1983
Frontier Club, 1935--1953
Gambler's, 1974--1976
Gold Spike, 1981--
Golden Gate, 1956--
Golden Nugget, 1946--
Horseshoe, 1951--2004
Hotel Elwell, 1951--1965
Jolly Trolly, 1977--1978,1981
La Bayou, 2006-
Lady Luck, 1964--2006
Las Vegas Club, 1931--1949,1949--
Little Casino, 1953--1965
Lucky Casino, 1963--1967
Main Street Station, 1991-1992,1996--
Mermaids, ??-??
Mint, 1961--1988
Monte Carlo Club, 1945--1955
Moulin Rouge, 1955--1959,1993--1996
Nevada Club, 1932--1953,1953--1969
Nevada Hotel, 1974--1988,1992--2004
Northern Club, 1930-1942
Orbit Inn, 1964--1976,1976--1987
Park, 1987--1990
Pioneer, 1947--1956,1983--1995
Plaza, 1992--
Red Garter, 1972--1975
Rendezvous, 1977--1978
Sassy Sally's, 1980-1983
Showboat, 1954--2000
Silver Club, 1934--1956
Silver Palace, 1956,1958--1964
Sinabar, 1972,1974--1975
SS Rex, 1945--1946
Sundance, 1980--1988
Sundance West, 1976--1980
Union Plaza, 1971--1992
The Valut, 1974--1976
Western, 1965--2012
Westerner, 1950--1960

I'm going to create a map next to show where each of these places were.