Mercedes Fernández Rodriguez was born September 14, 1914 in Barcelona - Spain, daughter of Antonia Fernández (1989-1981) and Eduardo Heusch. Mercedes studied in the Catholic school of "San Vicente de Paulo" in Barcelona.
In 1935 she married Antonio Orejuela Pavón (1912-1936), lieutenant and hydroplane naval aviator
in the Armed Forces of Spain. She lost her husband October 9, 1935 during the Spanish Civil War and there were no children from the marriage.