Thanks Miguel, every little piece helps put this puzzle together. My grandfather moved t Texas, USA. from Mexico. Our research kind of drops off there. We belive his father was from Spain. The Z became an S when his family came to the USA. Texas seems to be very well populated with Saldivar's. I have also recieved a letter from a woman in Peru that said there were Saldivar's there too. Still another woman wrote me from Spain, explaining in Spanish writing that the name originated in the town of Zaldua just as you mentioned. And another Young woman asked if I knew anything about the Saldivar's being gypsies, that her research found some in Spain. (I didn't reply to that email) Thanks again Miguel, take care.