Mirtha Marrero [Fernández] was a Cuban born former pitcher who played from 1948 through 1953 in the All-American Girls Professional Baseball League.
Besides her, other Cubanas who played in the league were Luisa Gallegos, Migdalia Pérez, Gloria Ruiz and Zonia Vialat.
She entered the league with the Chicago Colleens, playing for them two years before joining the Kalamazoo Lassies (1950), Fort Wayne Daisies (1951) and Battle Creek Belles (1952).
Another tribute to the AAGPBL players came with the 1992 film A League of Their Own, featuring Tom Hanks, Geena Davis and Madonna, and directed by filmmaker Penny Marshall.
The next year, she and her AAGPBL teammates from Cuba were honored by having their names and photos presented at a ceremony in New York City.