María Luisa Guerrero
Born in Havana, María Luisa Guerrero received a doctoral degree from the University of Havana. Guerrero taught at several schools in the Havana area, including Ceiba del Agua in Rancho Boyeros and Jose Marti in Maríanao. In the 1930s, she served on the Board of Directors of the Lyceum and Lawn Tennis Club, a women's organization dedicated to the promotion of Cuban culture and the role of women in the intellectual development of Cuba.  During this time she also met Elena Mederos with whom she undertook many projects focusing on social welfare issues.

Guerrero was active in several political groups.  She served on the Executive Committee of the Movimiento de Resistencia Civica (Civic Resistance Movement) and joined the Movimiento Revolucionario del Pueblo (People's Revolutionary Movement) upon its foundation in 1959 and was a member of its National Executive Committee through 1961, when she left Cuba as an exile. In the United States, María Luisa worked in UNICEF with Elena Mederos, and in 1967, she returned to teaching as a Spanish professor and head of the Language Department in Paul VI Regional High School, Clifton, New Jersey.

Elena Mederos
Elena Mederos was born on January 13, 1900 in Havana and married Hilario González Arrieta on July 2, 1924. She founded the School of Social Services of the University of Havana and the Foundation for Social Services, a private organization devoted to develop standards and programs for children's institutions in Cuba.

When Fidel Castro seized power in Cuba in 1959, Mederos became Minister of Social Welfare but resigned five months later upon realizing that the Castro regime was Communist.  Mederos fled to the United States in 1961 and immediately joined UNICEF. After trips to Africa and Latin America, Elena returned to New York and founded Of Human Rights, an organization devoted to informing US politicians and scholars of the plight of Cuban political prisoners. She also founded a successful Cuban exile lobby which was instrumental in the release of thousands of political prisoners. Elena Mederos died in Washington, D.C. on September 25, 1982.

Series I. María Luisa Guerrero (boxes 1-3) consists of clippings, pamphlets, periodicals, US government documents about Cuba and Cuban exiles, and correspondence and other general material. It also contains a manuscript of "Una mujer con perfil pars la historia," a biography of Elena Mederos written by Guerrero.

Series II. Elena Mederos (boxes 4-6) contains photographs, slides, speeches, and works of Elena Mederos. In the series are also biographical material, testimonies, and posthumous material on Mederos.