I hate to burst anybody’s bubble, especially since OLG is my all time favorite, but this article is from 2001. There are pictures somewhere on the web but to me they just looked like blobs. You would really have to have an imagination to see people in those pics.
I sure wish this was updated.
Okay, I went to the site of the OP article and here is what I found!
http://catholiceducation.org/articles/religion/re0057.html
This is all about the Aztec and how Catholicism started in Mexico and about Our Lady of Guadalupe.
Didn’t want to remain just a downer. :-( LOL ;-D
I’m posting another article with a 2009 byline date, but not much more scientific information.
I’ll ping you to it.