Shanty town along the Martín Peña Canal, 1973On January 2, 1947, the people of San Juan elected Felisa Rincón de Gautier (also known as Doña Fela) (1897–1994) as their mayor. Thus, she became the first woman to be elected as the mayor of a capital city in any of the Americas. During the Cold War era, she ordered the establishment of the island's first Civil Defense system under the directorship of Colonel Gilberto José Marxuach (Teófilo's son). Rincón de Gautier served as mayor until January 2, 1969.