However, Dutch and most notably Quinn remained very powerful figures on the island due to the many political connections that reached the Texas State Senate.
By the late 1920s, as they climbed up the ranks, the two brothers took control and transitioned the Beach Gang into their own personal organization, with Voight and Quinn acting more like partners than bosses.
After the repeal of Prohibition, Sam capitalized the popularity of gambling in Texas and started building an illegal gambling empire in Galveston City and Galveston County, teaming up with notorious gangsters, such as Moe Dalitz, Frank Nitti and Albert Anastasia, although those figures never operated rackets in the city or county.
In the early 1930s, the Maceos backed Frank L. Biaggne for the position of Galveston County sheriff and supported Walter Johnston as city police commissioner.
After Sam and Rose's deaths in the early 1950s, the brothers were succeeded by the Fertitta Group, who moved the organization to Las Vegas, Nevada and worked in the -now legal- casino industry.