Quic-Silver Mining Almanden / San Jose /Santa Clara Co CA
Barron certainly appears to be a common name in Mexico for some time so the England story is suspect.
Here are a couple of IGI listings that look somewhat interesting as far as Rosario's parents though neither is an exact match. I suppose Rosario died to early to be listed in the Social Security death index. Do you have any idea which border crossing he would have used to come to the U.S.?