Wow, Maria really does look like Jane Doe. I wish we could see a closer picture to see if she has the moles that were so prominent on Jane Doe's face. I am trying to picture her boyfriend with longer hair and w/o glasses to see a better resemblance to John Doe.
Someone e-mailed me a long time ago about the Dirty War in Argentina going on in the 70s, and a possible connection to the Mystery Couple. I never had a chance to look into further. I did say a long time ago though that I thought both of them had a South American look to them. I just haven't searched much in that area because of the comment John Doe made to the guy at the KOA Campground about being from Canada. Of course, that doesn't mean it's necessarily true, it could have just been a story he told the guy.
Good find about Maria.