[2] In 1922, Martínez Acosta was president of the Woman's Civic Club, working on children's health issues.

[3] Soon after Puerto Rican women gained full voting rights,[4] Perez Almiroty became the first woman to be elected to the Senate of Puerto Rico,[5] when she won a seat as an at-large senator in the 1936 elections, representing the Liberal Party.

[8] She was briefly the acting leader of the Liberal Party in 1938, after the death of Antonio Rafael Barceló.

[11] She was often known by the name 'María Martínez Acosta de Pérez Almiroty' which, under Spanish customs, alludes not only to the fact she is married but also to what family her husband comes from.

[13] A biography of Martínez Acosta, Sara R. Bonilla del Rio's María Martínez de Pérez Almiroty: Los primeros pasos de la mujer en el Senado, was published in 2015.