Hello, My name is Conrado Inocencio Diaz. My Y DNA haplogroup is J-M172. My subclade is J2a1-z387. I am exploring our Diaz Surname. My Diaz Y DNA takes me back to Proto Indo European. https://www.familytreedna.com/my/y-dna-migration-map. My grandfather was Antonio Cirilo Diaz from Mexico DF / San Luis Potosi Mex. I have 5 generations born here in the USA that know little about our ancestry. Any migration/info help will be appreciated. Thank you.