It would help if you give us the city in Cuba where your granfather lived along with possible years of birth and marriage. If you do not know the date, just back calculate from your mother's birth date. The etimology of Buxó is Boj from the latin bujus, a small evergreen bush or tree. The surnames are; Spanish: Boje, Bojo, Boja, Bojollo; Catalan: Boix, Boixó, Buxó, Buixó; Italian: Bussi, Bossi, Bossolo; French: Buis, Dubuis; German: Buchsbaum, Buxbaum; English: Box. There are 339 individuals listed in Spain's white telephone pages with either their paternal or maternal last name of Buxó. With the paternal surname of Buxó the following; 116 in Barcelona, 30 in Girona and 4 in Tarragona. There are 31 Buxó's listed in the white pages in the US. Jorge Piñón