In the early 20th century, companies such as the Pennsylvania Railroad and Spanish-speaking immigrant networks attracted Spanish-speaking workers to Philadelphia. By 1910 several Latino and Hispanic groups had resided in Philadelphia. Cubans and Spaniards founded and initially lead the Latino and Hispanic community organizations. Due to the Immigration Act of 1924 Puerto Ricans, who were already U.S. citizens, became the predominate Hispanic group and had taken control of the organizations by the 1950s. Other Latino and Hispanic groups began establishing themselves by the 1960s. By 2005, most of the leadership was still Puerto Rican and some non-Puerto Ricans had taken some leadership positions