I wrote this as a response to a previous blog post, but I think it warrants some re-consideration, hence this post... enjoy.
I sincerely believe that the man in the Aragon-tintype and Billy the Kid are one and the same. No doubt about it; the man in the Aragon tintype also has that somewhat mischievous, lovable, youthful and rascal-esque kinda look on him that I suspect Billy also had. To boot, if you take a closer look on their mouths you see that both seem to have front buckteeth - a distinguishing feature of the kid - along with a small mouth. I read that a computer analysis of the two images showed combined facial and physical characteristics that would appear once in 1,8 million people - that is 1,8 million people, folks! Plus, you can also see the similarity if not dead-on likeness between their ears and skull structure - even their eyebrows, although a portion seems to have faded or been damaged by the ravages of time in the Aragon tintype.
The only thing I can't seem to get my mind wrapped around is the eyes: in the Aragon tin they are clearly open and visible, whereas in the original tin, they're pretty much two narrow slits. Could it be that Billy was blinded by the flash from the camera, accounting for the squinting of his eyes. Or, maybe he just wanted to display some cockiness by squinting his eyes? Would love to hear from ya´?
To anyone interested, here is a link to the picture comparison and the brilliant post started by Chris Lampe: