http://editorial.designtaxi.com/editori ... 2015/4.jpg

The Beatles look like my father when he was 15.

That's interesting, most seem to have the same proportions. Give or take a few noses and lips.

I'm pretty sure the photos are all slightly scaled in one dimension to match.

Yes that may be so, but there does seem to be an odd similarity. Or maybe it's something my brain is reading into the images unconsciously, that makes this similarity seem so.