I really don't remember Ralph Macias. I think that maybe he was a student at the little school in San Salvador during a time when I was at the American School so I only remember some things Susie Stewart said about him, something about him liking to do science experiments and blow stuff up with his lab kit. Some guys really get obsessed with science kits, usually guys who would not in a million years think of saying hello to a girl like me so it is not like I would really remember him.
Ok, so I just checked Wikipedia and learned that Bianca Jagger's maiden name was Macias. However, I have no connection to those rich people. I also can't say whether Ralph was from Nicaragua. You could always ask Susie if she remembers.