Gus Greenbaum

Gus Greenbaum (1894 Phoenix, Arizona –December 3, 1958 Encanto, Phoenix) was a member of the Chicago Outfit and a syndicate accountant for Las Vegas casino operations.

An associate of Meyer Lansky, Greenbaum joined his organization on New York's Lower East Side in the mid or late 1910s. During Prohibition, Greenbaum began working with the Chicago Outfit managing the southwest division of the Trans-America Race wire service in 1928. Sent to Las Vegas shortly after World War II began, Greenbaum gained control over syndicate gambling operations with Morris Rosen and Moe Sedway. Sedway and Greenbaum ran the El Cortez Casino in 1945, until Greenbaum was asked by William R. Wilkerson to manage casino operations for the Flamingo Hotel. In 1946, Bugsy Siegel took over construction and creative control of the Flamingo, until it was shut down in January 1947 due to mounting losses as a result of Siegel's skimming. His friend William Bioff lived nearby in 1250 East Bethany Tempe, Arizona.