I'm searching information on my great grandfather Juan Presa Diaz. All I know about him is that he had a brother, Manuel Presa Diaz, and worked in a mine in Tuilla, Langreo, Asturias, Spain. He traveled to Cuba on a year close to the 1900s and married Encarnacion Lorenzo Mas. I want to know more about him and the Presa surname. Any information you have will be gladly appreciated.