My maternal grandmother lived in Cuba and was born in Spain. Her name was Maria Gegundez and she married Antonio Cunarro Gomez. She had one son named Angel Antonio Gomez in 1924 in Havana. She had siblings named Salvador, Gumrcindo, Paquita, and Visita all of whom went from Spain to Cuba to Argentina. By any chance are any of these names in your family tree? I know they were from Lugo and cousins remained in Cuba after my dad left in the 1950s.
vale ok