Joaquín Gutiérrez Mangel (30 March 1918 – 16 October 2000) was a Costa Rican writer who won multiple awards, and whose children's book Cocorí has been translated into ten languages. In addition to writing children's books, Gutiérrez was a chess champion, war correspondent, journalist, story-teller, translator, professor, and communist activist.
Eunice Odio (pseudonym, Catalina Mariel; October 18, 1919- March 23, 1974) was a prominent Latin American poet known for her diverse body of work, including articles, essays, reflections, letters, short stories, and children's literature. She also held roles as a journalist and educator, teaching English and French.She was born in San José, Costa Rica. Odio resided in various countries including Costa Rica, Mexico, Cuba, Guatemala, Nicaragua, and the United States during her lifetime. She gained Mexican citizenship through marriage to the painter Rodolfo Zanabria. She died in Mexico City, Mexico.