Isabel Martínez de Perón
María Estela Martínez Cartas de Perón (born 4 February 1931), better known as Isabel Martínez de Perón () or Isabel Perón, served as the 42nd President of Argentina from 1974 to 1976. She was the third wife of President Juan Perón. During her husband's third term as president from 1973 to 1974, Isabel served as both vice president and First Lady. Following her husband's death in office in 1974, Isabel served as president of Argentina from 1 July 1974 to 24 March 1976, when the military took over the government and placed her under house arrest for five years, before exiling her to Spain in 1981. She holds the distinction of having been the first woman to have had the title of "President", as opposed to a queen or prime minister.
Estela Jiménez Esponda
During the elections and early tenure of President Lázaro Cárdenas when it appeared he was supportive of women's achievement of the vote, Jiménez served as a sector leader of Party of the Mexican Revolution (PRM) and was involved in the Frente Unico Pro Derechos de la Mujer (FUPDM) (United Front for Women‟s Rights). The FUPDM, which had begun in the 1920s, declined after the unsuccessful ratification of the amendment to Article 34 of the Constitution granting enfranchisement to women. Jiménez tried to revive the work, leading the PRM's Women's Block (1943), without much success especially when the party reorganized as PRI and she moved further left. As she saw the effects of malnutrition, labor laws which worked against women, and lack of laws to protect women and children, her ideology became more in line with the communist and socialist parties of Mexico.