I began my Lucio research just a couple of years when I married my wife whose mother's maiden name was Lucio.
Just skimming through the boards, its obvious that there is a large contingent of Lucios from the South Texas/Northern Mexico area posting on here. Considering the fact that the name is not particularly common, perhaps we can coordinate our efforts to see if we all connect.
Let's try to post the information we have on our Hispanic Lucios (pronounced LOU-cee-oh) on this thread and see if we intersect.