Claim: María Arias Bernal, an agitator in the Mexican Revolution, who became a school superintendent in 1910, participated in the educational literacy drive and became the private secretary of Sara Pérez de Madero, wife of the president.
Evidence: María Arias Bernal, also known as María Pistolas (1884–1923), was a schoolteacher who was an agitator in the Mexican Revolution under Francisco I. Madero, president of Mexico 1911–1913, until his assassination in a counter-revolutionary coup by Victoriano Huerta. She began teaching and in 1910 became a school superintendent. She participated in the educational literacy drive and became the private secretary of Sara Pérez de Madero, wife of the president.