Mystery medical history photos

Can you identify this? The Stanford UNiversity School of Medicine posted a "Medical Mysteries" set to Flickr. These are photos that the Lane Medical Archive has no information about: what/who is seen in the photos, what exactly they're doing, etc. Can you help?
"Medical Mysteries"

Previously:

David Pescovitz is Boing Boing's co-editor/managing partner. He's also a research director at Institute for the Future. On Instagram, he's @pesco.

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Ultan

It seems to be a model to demonstrate the placement and branchings of the superficial cranial nerves, the muscles innervated by those nerves and major superficial vasculature.
Robert

@Ultan: I think the Stanford University School of Medicine might be looking for a different kind of answer ;)
Robert

They kinda look like yearbook photos. And #2 kinda looks like a young Rick Moranis.
TroofSeeker

It’s the head of George Custer. Most of the skin has been removed, and he seems to be staring at a quantity of Native Americans that far exceeds what he had expected.
avraamov

Dad?
Anonymous

Picasso?
Lauren O

I work at Stanford’s main campus library, and I’m always sending and receiving books from the Lane Medical Library. It’s so weird to suddenly see that name up on BoingBoing.