According to history virtually all (but 10%) of the native population of Galicia (in NW Spain) emigrated to the Americas by the end of th 17th century.
Although Cuba was the major destination for these folks, many emigrated later to Mexico.
I'd lay odds this guy's an illegal or his parents are.
Your a lot more schooled in history than this engineer!! I'll go with your analysis....and hunch. Thanks for the history lesson. I need more of those.