Free State of Galveston as well as the nearby city of Brazoria. The opening of the Houston Ship Channel in 1915 further challenged the port city. Houston and Texas City, as well as other ports, rapidly overtook Galveston as leading ports and commercial centers; by 1930 map makers were showing Houston as the major city on the Texas coast, instead of Galveston. Cotton shipping, which Galveston had thoroughly dominated on a worldwide level, began migrating to other ports in Texas and on the West Coast. As Galveston's traditional economy declined, Texas' oil boom began in 1901, with oil wells and refineries constructed throughout the
Free State of Galveston protection. The Maceos protected the citizens of the island in many ways, such as limiting how much locals were allowed to gamble at the casinos, donating heavily to local charities, and investing in community development. The Maceo empire soon extended beyond Galveston Island and gradually expanded throughout Galveston County with the family owning more than 60 businesses, as well as slot machines throughout the county. Investments in oil speculation helped to diversify the Maceos' portfolio and add to their wealth. Law enforcement sources accused them of running the narcotics trade as far north as Dallas and Sam was even charged,