María Luisa Penne Rullan de Castillo (11 September 1913 – 6 October 2005), born in Ponce, Puerto Rico, was a painter, artist, and educator who taught and influenced the work of well-known artists such as Noemí Ruiz, Jaime Carrero, Rafael Rivera Garcia, and printmaker Susanna Herrero among others.
María Teresa Babín Cortés (May 30, 1910- December 19, 1989) was a Puerto Rican educator, literary critic, and essayist. She also wrote poetry and plays. Among her best-known works is Panorama de la Cultura Puertorriqueña and several essays on Federico García Lorca.
Edna Coll Pujals (July 24, 1906 – November 19, 2002) was a Puerto Rican educator and author. She was president of the Society of Puerto Rican Authors in San Juan. Coll was also the founder of the Academy of Fine Arts in Puerto Rico.