My name is Sergio Gaona Ortega I was born in Morelia Michuacan Mexico. Growing up I thought the last name came from natives in mexico btu I saw that it comes from north of spain. The family last name ends with me and my sister. I have seen alot of gaona recently on facebook. Besides that all I can do is just research the family in Michuacan and see the rest of the history from the city records.