My father's grandfather's name was Bartolome Mas Mieras. He was born in Mallorca. Around 1849 or 1850 he moved to Santiago de Cuba and married Ursula Armiñan Miyares. Children were: Fernando Mas Armiñan, Ursula Mas Armiñan, Juana Maria Mas Armiñan and Rafael Mas Armiñan.
During IXX century a lot families from Mayorca went to Cuba, Puerto Rico and Argentina.
Most of the Mases that went from Balear Islands to other regions of the world could be relatives.